diff --git a/integration-tests/api/__tests__/admin/publishable-api-key.js b/integration-tests/api/__tests__/admin/publishable-api-key.js
index 518c59da29..c1435d133a 100644
--- a/integration-tests/api/__tests__/admin/publishable-api-key.js
+++ b/integration-tests/api/__tests__/admin/publishable-api-key.js
@@ -9,6 +9,11 @@ const adminSeeder = require("../../helpers/admin-seeder")
 const {
   simplePublishableApiKeyFactory,
 } = require("../../factories/simple-publishable-api-key-factory")
+const {
+  simpleSalesChannelFactory,
+  simpleProductFactory,
+  simpleRegionFactory,
+} = require("../../factories")
 
 jest.setTimeout(50000)
 
@@ -18,6 +23,13 @@ const adminHeaders = {
   },
 }
 
+const customerData = {
+  email: "medusa@test.hr",
+  password: "medusatest",
+  first_name: "medusa",
+  last_name: "medusa",
+}
+
 describe("[MEDUSA_FF_PUBLISHABLE_API_KEYS] Publishable API keys", () => {
   let medusaProcess
   let dbConnection
@@ -27,7 +39,10 @@ describe("[MEDUSA_FF_PUBLISHABLE_API_KEYS] Publishable API keys", () => {
     const cwd = path.resolve(path.join(__dirname, "..", ".."))
     const [process, connection] = await startServerWithEnvironment({
       cwd,
-      env: { MEDUSA_FF_PUBLISHABLE_API_KEYS: true },
+      env: {
+        MEDUSA_FF_PUBLISHABLE_API_KEYS: true,
+        MEDUSA_FF_SALES_CHANNELS: true,
+      },
       verbose: false,
     })
     dbConnection = connection
@@ -280,4 +295,777 @@ describe("[MEDUSA_FF_PUBLISHABLE_API_KEYS] Publishable API keys", () => {
       }
     })
   })
+
+  describe("POST /admin/publishable-api-keys/:id/sales-channels/batch", () => {
+    const pubKeyId = IdMap.getId("pubkey-get-id-batch")
+    let salesChannel1
+    let salesChannel2
+
+    beforeEach(async () => {
+      await adminSeeder(dbConnection)
+
+      await simplePublishableApiKeyFactory(dbConnection, {
+        id: pubKeyId,
+      })
+
+      salesChannel1 = await simpleSalesChannelFactory(dbConnection, {
+        name: "test name",
+        description: "test description",
+      })
+
+      salesChannel2 = await simpleSalesChannelFactory(dbConnection, {
+        name: "test name 2",
+        description: "test description 2",
+      })
+    })
+
+    afterEach(async () => {
+      const db = useDb()
+      return await db.teardown()
+    })
+
+    it("add sales channels to the publishable api key scope", async () => {
+      const api = useApi()
+
+      const response = await api.post(
+        `/admin/publishable-api-keys/${pubKeyId}/sales-channels/batch`,
+        {
+          sales_channel_ids: [
+            { id: salesChannel1.id },
+            { id: salesChannel2.id },
+          ],
+        },
+        adminHeaders
+      )
+
+      const mappings = await dbConnection.manager.query(
+        `SELECT *
+         FROM publishable_api_key_sales_channel
+         WHERE publishable_key_id = '${pubKeyId}'`
+      )
+
+      expect(response.status).toBe(200)
+
+      expect(mappings).toEqual([
+        {
+          sales_channel_id: salesChannel1.id,
+          publishable_key_id: pubKeyId,
+        },
+        {
+          sales_channel_id: salesChannel2.id,
+          publishable_key_id: pubKeyId,
+        },
+      ])
+
+      expect(response.data.publishable_api_key).toMatchObject({
+        id: pubKeyId,
+        created_at: expect.any(String),
+        updated_at: expect.any(String),
+      })
+    })
+  })
+
+  describe("DELETE /admin/publishable-api-keys/:id/sales-channels/batch", () => {
+    const pubKeyId = IdMap.getId("pubkey-get-id-batch-v2")
+    let salesChannel1
+    let salesChannel2
+    let salesChannel3
+
+    beforeEach(async () => {
+      await adminSeeder(dbConnection)
+
+      await simplePublishableApiKeyFactory(dbConnection, {
+        id: pubKeyId,
+      })
+
+      salesChannel1 = await simpleSalesChannelFactory(dbConnection, {
+        name: "test name",
+        description: "test description",
+      })
+
+      salesChannel2 = await simpleSalesChannelFactory(dbConnection, {
+        name: "test name 2",
+        description: "test description 2",
+      })
+
+      salesChannel3 = await simpleSalesChannelFactory(dbConnection, {
+        name: "test name 3",
+        description: "test description 3",
+      })
+
+      await dbConnection.manager.query(
+        `INSERT INTO 
+            publishable_api_key_sales_channel 
+            (publishable_key_id, sales_channel_id)
+         VALUES
+             ('${pubKeyId}', '${salesChannel1.id}'),
+             ('${pubKeyId}', '${salesChannel2.id}'),
+             ('${pubKeyId}', '${salesChannel3.id}');`
+      )
+    })
+
+    afterEach(async () => {
+      const db = useDb()
+      return await db.teardown()
+    })
+
+    it("remove sales channels from the publishable api key scope", async () => {
+      const api = useApi()
+
+      const response = await api.delete(
+        `/admin/publishable-api-keys/${pubKeyId}/sales-channels/batch`,
+        {
+          data: {
+            sales_channel_ids: [
+              { id: salesChannel1.id },
+              { id: salesChannel2.id },
+            ],
+          },
+          ...adminHeaders,
+        }
+      )
+
+      const mappings = await dbConnection.manager.query(
+        `SELECT *
+         FROM publishable_api_key_sales_channel
+         WHERE publishable_key_id = '${pubKeyId}'`
+      )
+
+      expect(response.status).toBe(200)
+
+      expect(mappings).toEqual([
+        {
+          sales_channel_id: salesChannel3.id,
+          publishable_key_id: pubKeyId,
+        },
+      ])
+
+      expect(response.data.publishable_api_key).toMatchObject({
+        id: pubKeyId,
+        created_at: expect.any(String),
+        updated_at: expect.any(String),
+      })
+    })
+  })
+
+  describe("GET /admin/publishable-api-keys/:id/sales-channels", () => {
+    const pubKeyId = IdMap.getId("pubkey-get-id-batch-v2")
+    let salesChannel1
+    let salesChannel2
+    let salesChannel3
+
+    beforeEach(async () => {
+      await adminSeeder(dbConnection)
+
+      await simplePublishableApiKeyFactory(dbConnection, {
+        id: pubKeyId,
+      })
+
+      salesChannel1 = await simpleSalesChannelFactory(dbConnection, {
+        name: "test name",
+        description: "test description",
+      })
+
+      salesChannel2 = await simpleSalesChannelFactory(dbConnection, {
+        name: "test name 2",
+        description: "test description 2",
+      })
+
+      salesChannel3 = await simpleSalesChannelFactory(dbConnection, {
+        name: "test name 3",
+        description: "test description 3",
+      })
+
+      await dbConnection.manager.query(
+        `INSERT INTO
+             publishable_api_key_sales_channel
+             (publishable_key_id, sales_channel_id)
+         VALUES
+             ('${pubKeyId}', '${salesChannel1.id}'),
+             ('${pubKeyId}', '${salesChannel2.id}');`
+      )
+    })
+
+    afterEach(async () => {
+      const db = useDb()
+      return await db.teardown()
+    })
+
+    it("list sales channels from the publishable api key", async () => {
+      const api = useApi()
+
+      const response = await api.get(
+        `/admin/publishable-api-keys/${pubKeyId}/sales-channels`,
+        adminHeaders
+      )
+
+      expect(response.status).toBe(200)
+      expect(response.data.sales_channels).toEqual(
+        expect.arrayContaining([
+          expect.objectContaining({
+            id: salesChannel1.id,
+            deleted_at: null,
+            name: "test name",
+            description: "test description",
+            is_disabled: false,
+          }),
+          expect.objectContaining({
+            id: salesChannel2.id,
+            deleted_at: null,
+            name: "test name 2",
+            description: "test description 2",
+            is_disabled: false,
+          }),
+        ])
+      )
+    })
+  })
+
+  describe("GET /store/products", () => {
+    const pubKeyId = IdMap.getId("pubkey-get-id")
+
+    let salesChannel1
+    let salesChannel2
+    let product1
+    let product2
+    let product3
+
+    beforeEach(async () => {
+      await adminSeeder(dbConnection)
+
+      salesChannel1 = await simpleSalesChannelFactory(dbConnection, {
+        name: "salesChannel1",
+        description: "salesChannel1",
+      })
+
+      salesChannel2 = await simpleSalesChannelFactory(dbConnection, {
+        name: "salesChannel2",
+        description: "salesChannel2",
+      })
+
+      product1 = await simpleProductFactory(dbConnection, {
+        title: "prod 1",
+        status: "published",
+        sales_channels: [salesChannel1],
+      })
+
+      product2 = await simpleProductFactory(dbConnection, {
+        title: "prod 2",
+        status: "published",
+        sales_channels: [salesChannel2],
+      })
+
+      product3 = await simpleProductFactory(dbConnection, {
+        title: "prod 3",
+        status: "published",
+      })
+
+      await simplePublishableApiKeyFactory(dbConnection, {
+        id: pubKeyId,
+        created_by: adminUserId,
+      })
+    })
+
+    afterEach(async () => {
+      const db = useDb()
+      await db.teardown()
+    })
+
+    it("returns products from a specific channel associated with a publishable key", async () => {
+      const api = useApi()
+
+      await api.post(
+        `/admin/publishable-api-keys/${pubKeyId}/sales-channels/batch`,
+        {
+          sales_channel_ids: [{ id: salesChannel1.id }],
+        },
+        adminHeaders
+      )
+
+      const response = await api.get(`/store/products`, {
+        headers: {
+          Authorization: "Bearer test_token",
+          "x-publishable-api-key": pubKeyId,
+        },
+      })
+
+      expect(response.data.products.length).toBe(1)
+      expect(response.data.products).toEqual(
+        expect.arrayContaining([
+          expect.objectContaining({
+            id: product1.id,
+          }),
+        ])
+      )
+    })
+
+    it("returns products from multiples sales channels associated with a publishable key", async () => {
+      const api = useApi()
+
+      await api.post(
+        `/admin/publishable-api-keys/${pubKeyId}/sales-channels/batch`,
+        {
+          sales_channel_ids: [
+            { id: salesChannel1.id },
+            { id: salesChannel2.id },
+          ],
+        },
+        adminHeaders
+      )
+
+      const response = await api.get(`/store/products`, {
+        headers: {
+          Authorization: "Bearer test_token",
+          "x-publishable-api-key": pubKeyId,
+        },
+      })
+
+      expect(response.data.products.length).toBe(2)
+      expect(response.data.products).toEqual(
+        expect.arrayContaining([
+          expect.objectContaining({
+            id: product1.id,
+          }),
+          expect.objectContaining({
+            id: product2.id,
+          }),
+        ])
+      )
+    })
+
+    it("SC param overrides PK channels (but SK still needs to be in the PK's scope", async () => {
+      const api = useApi()
+
+      await api.post(
+        `/admin/publishable-api-keys/${pubKeyId}/sales-channels/batch`,
+        {
+          sales_channel_ids: [
+            { id: salesChannel1.id },
+            { id: salesChannel2.id },
+          ],
+        },
+        adminHeaders
+      )
+
+      const response = await api.get(
+        `/store/products?sales_channel_id[0]=${salesChannel2.id}`,
+        {
+          headers: {
+            Authorization: "Bearer test_token",
+            "x-publishable-api-key": pubKeyId,
+          },
+        }
+      )
+
+      expect(response.data.products.length).toBe(1)
+      expect(response.data.products).toEqual(
+        expect.arrayContaining([
+          expect.objectContaining({
+            id: product2.id,
+          }),
+        ])
+      )
+    })
+
+    it("returns all products if PK is not passed", async () => {
+      const api = useApi()
+
+      await api.post(
+        `/admin/publishable-api-keys/${pubKeyId}/sales-channels/batch`,
+        {
+          sales_channel_ids: [
+            { id: salesChannel1.id },
+            { id: salesChannel2.id },
+          ],
+        },
+        adminHeaders
+      )
+
+      const response = await api.get(`/store/products`, {
+        headers: {
+          Authorization: "Bearer test_token",
+          // "x-publishable-api-key": pubKeyId,
+        },
+      })
+
+      expect(response.data.products.length).toBe(3)
+      expect(response.data.products).toEqual(
+        expect.arrayContaining([
+          expect.objectContaining({
+            id: product1.id,
+          }),
+          expect.objectContaining({
+            id: product2.id,
+          }),
+          expect.objectContaining({
+            id: product3.id,
+          }),
+        ])
+      )
+    })
+
+    it("returns all products if passed PK doesn't have associated channels", async () => {
+      const api = useApi()
+
+      const response = await api.get(`/store/products`, {
+        headers: {
+          Authorization: "Bearer test_token",
+          "x-publishable-api-key": pubKeyId,
+        },
+      })
+
+      expect(response.data.products.length).toBe(3)
+      expect(response.data.products).toEqual(
+        expect.arrayContaining([
+          expect.objectContaining({
+            id: product1.id,
+          }),
+          expect.objectContaining({
+            id: product2.id,
+          }),
+          expect.objectContaining({
+            id: product3.id,
+          }),
+        ])
+      )
+    })
+
+    it("throws because sales channel param is not in the scope of passed PK", async () => {
+      const api = useApi()
+
+      await api.post(
+        `/admin/publishable-api-keys/${pubKeyId}/sales-channels/batch`,
+        {
+          sales_channel_ids: [{ id: salesChannel1.id }],
+        },
+        adminHeaders
+      )
+
+      try {
+        await api.get(
+          `/store/products?sales_channel_id[]=${salesChannel2.id}`,
+          {
+            headers: {
+              Authorization: "Bearer test_token",
+              "x-publishable-api-key": pubKeyId,
+            },
+          }
+        )
+      } catch (error) {
+        expect(error.response.status).toEqual(400)
+        expect(error.response.data.errors[0]).toEqual(
+          `Provided sales channel id param: ${salesChannel2.id} is not associated with the Publishable API Key passed in the header of the request.`
+        )
+      }
+    })
+  })
+
+  describe("GET /store/products/:id", () => {
+    const pubKeyId = IdMap.getId("pubkey-get-id")
+
+    let salesChannel1
+    let product1
+    let product2
+
+    beforeEach(async () => {
+      await adminSeeder(dbConnection)
+
+      salesChannel1 = await simpleSalesChannelFactory(dbConnection, {
+        name: "salesChannel1",
+        description: "salesChannel1",
+      })
+
+      product1 = await simpleProductFactory(dbConnection, {
+        title: "prod 1",
+        status: "published",
+        sales_channels: [salesChannel1],
+      })
+
+      product2 = await simpleProductFactory(dbConnection, {
+        title: "prod 2",
+        status: "published",
+      })
+
+      await simplePublishableApiKeyFactory(dbConnection, {
+        id: pubKeyId,
+        created_by: adminUserId,
+      })
+    })
+
+    afterEach(async () => {
+      const db = useDb()
+      await db.teardown()
+    })
+
+    it("retrieve a products from a specific channel associated with a publishable key", async () => {
+      const api = useApi()
+
+      await api.post(
+        `/admin/publishable-api-keys/${pubKeyId}/sales-channels/batch`,
+        {
+          sales_channel_ids: [{ id: salesChannel1.id }],
+        },
+        adminHeaders
+      )
+
+      const response = await api.get(`/store/products/${product1.id}`, {
+        headers: {
+          Authorization: "Bearer test_token",
+          "x-publishable-api-key": pubKeyId,
+        },
+      })
+
+      expect(response.data.product).toEqual(
+        expect.objectContaining({
+          id: product1.id,
+        })
+      )
+    })
+
+    it("return 400 because requested product is not in the SC associated with a publishable key", async () => {
+      const api = useApi()
+
+      await api.post(
+        `/admin/publishable-api-keys/${pubKeyId}/sales-channels/batch`,
+        {
+          sales_channel_ids: [{ id: salesChannel1.id }],
+        },
+        adminHeaders
+      )
+
+      const response = await api
+        .get(`/store/products/${product2.id}`, {
+          headers: {
+            Authorization: "Bearer test_token",
+            "x-publishable-api-key": pubKeyId,
+          },
+        })
+        .catch((err) => {
+          return err.response
+        })
+
+      expect(response.status).toEqual(400)
+    })
+
+    it("correctly returns a product if passed PK has no associated SCs", async () => {
+      const api = useApi()
+
+      let response = await api
+        .get(`/store/products/${product1.id}`, {
+          headers: {
+            Authorization: "Bearer test_token",
+            "x-publishable-api-key": pubKeyId,
+          },
+        })
+        .catch((err) => {
+          return err.response
+        })
+
+      expect(response.status).toEqual(200)
+
+      response = await api
+        .get(`/store/products/${product2.id}`, {
+          headers: {
+            Authorization: "Bearer test_token",
+            "x-publishable-api-key": pubKeyId,
+          },
+        })
+        .catch((err) => {
+          return err.response
+        })
+
+      expect(response.status).toEqual(200)
+    })
+  })
+
+  describe("POST /store/carts/:id", () => {
+    let product
+    const pubKeyId = IdMap.getId("pubkey-get-id")
+
+    beforeEach(async () => {
+      await adminSeeder(dbConnection)
+
+      await simpleRegionFactory(dbConnection, {
+        id: "test-region",
+      })
+
+      await simplePublishableApiKeyFactory(dbConnection, {
+        id: pubKeyId,
+        created_by: adminUserId,
+      })
+
+      product = await simpleProductFactory(dbConnection, {
+        sales_channels: [
+          {
+            id: "sales-channel",
+            name: "Sales channel",
+            description: "Sales channel",
+          },
+          {
+            id: "sales-channel2",
+            name: "Sales channel2",
+            description: "Sales channel2",
+          },
+        ],
+      })
+    })
+
+    afterEach(async () => {
+      const db = useDb()
+      return await db.teardown()
+    })
+
+    it("should assign sales channel to order on cart completion if PK is present in the header", async () => {
+      const api = useApi()
+
+      await api.post(
+        `/admin/publishable-api-keys/${pubKeyId}/sales-channels/batch`,
+        {
+          sales_channel_ids: [{ id: "sales-channel" }],
+        },
+        adminHeaders
+      )
+
+      const customerRes = await api.post("/store/customers", customerData, {
+        withCredentials: true,
+      })
+
+      const createCartRes = await api.post(
+        "/store/carts",
+        {
+          region_id: "test-region",
+          items: [
+            {
+              variant_id: product.variants[0].id,
+              quantity: 1,
+            },
+          ],
+        },
+        {
+          headers: {
+            Authorization: "Bearer test_token",
+            "x-publishable-api-key": pubKeyId,
+          },
+        }
+      )
+
+      const cart = createCartRes.data.cart
+
+      await api.post(`/store/carts/${cart.id}`, {
+        customer_id: customerRes.data.customer.id,
+      })
+
+      await api.post(`/store/carts/${cart.id}/payment-sessions`)
+
+      const createdOrder = await api.post(
+        `/store/carts/${cart.id}/complete-cart`
+      )
+
+      expect(createdOrder.data.type).toEqual("order")
+      expect(createdOrder.status).toEqual(200)
+      expect(createdOrder.data.data).toEqual(
+        expect.objectContaining({
+          sales_channel_id: "sales-channel",
+        })
+      )
+    })
+
+    it("SC from params defines where product is assigned (passed SC still has to be in the scope of PK from the header)", async () => {
+      const api = useApi()
+
+      await api.post(
+        `/admin/publishable-api-keys/${pubKeyId}/sales-channels/batch`,
+        {
+          sales_channel_ids: [
+            { id: "sales-channel" },
+            { id: "sales-channel2" },
+          ],
+        },
+        adminHeaders
+      )
+
+      const customerRes = await api.post("/store/customers", customerData, {
+        withCredentials: true,
+      })
+
+      const createCartRes = await api.post(
+        "/store/carts",
+        {
+          sales_channel_id: "sales-channel2",
+          region_id: "test-region",
+          items: [
+            {
+              variant_id: product.variants[0].id,
+              quantity: 1,
+            },
+          ],
+        },
+        {
+          headers: {
+            Authorization: "Bearer test_token",
+            "x-publishable-api-key": pubKeyId,
+          },
+        }
+      )
+
+      const cart = createCartRes.data.cart
+
+      await api.post(`/store/carts/${cart.id}`, {
+        customer_id: customerRes.data.customer.id,
+      })
+
+      await api.post(`/store/carts/${cart.id}/payment-sessions`)
+
+      const createdOrder = await api.post(
+        `/store/carts/${cart.id}/complete-cart`
+      )
+
+      expect(createdOrder.data.type).toEqual("order")
+      expect(createdOrder.status).toEqual(200)
+      expect(createdOrder.data.data).toEqual(
+        expect.objectContaining({
+          sales_channel_id: "sales-channel2",
+        })
+      )
+    })
+
+    it("should throw because SC id in the body is not in the scope of PK from the header", async () => {
+      const api = useApi()
+
+      await api.post(
+        `/admin/publishable-api-keys/${pubKeyId}/sales-channels/batch`,
+        {
+          sales_channel_ids: [{ id: "sales-channel" }],
+        },
+        adminHeaders
+      )
+
+      try {
+        await api.post(
+          "/store/carts",
+          {
+            sales_channel_id: "sales-channel2", // SC not in the PK scope
+            region_id: "test-region",
+            items: [
+              {
+                variant_id: product.variants[0].id,
+                quantity: 1,
+              },
+            ],
+          },
+          {
+            headers: {
+              Authorization: "Bearer test_token",
+              "x-publishable-api-key": pubKeyId,
+            },
+          }
+        )
+      } catch (error) {
+        expect(error.response.status).toEqual(400)
+        expect(error.response.data.errors[0]).toEqual(
+          `Provided sales channel id param: sales-channel2 is not associated with the Publishable API Key passed in the header of the request.`
+        )
+      }
+    })
+  })
 })
diff --git a/integration-tests/api/__tests__/store/cart/ff-sales-channels.js b/integration-tests/api/__tests__/store/cart/ff-sales-channels.js
index c0d92f51d2..9ae859af8a 100644
--- a/integration-tests/api/__tests__/store/cart/ff-sales-channels.js
+++ b/integration-tests/api/__tests__/store/cart/ff-sales-channels.js
@@ -6,15 +6,9 @@ const { useApi } = require("../../../../helpers/use-api")
 const { useDb } = require("../../../../helpers/use-db")
 
 const {
-  simpleCartFactory,
   simpleRegionFactory,
-  simpleShippingOptionFactory,
-  simpleCustomShippingOptionFactory,
   simpleProductFactory,
-  simplePriceListFactory,
-  simpleDiscountFactory,
 } = require("../../../factories")
-const { IdMap } = require("medusa-test-utils")
 
 jest.setTimeout(30000)
 
diff --git a/packages/medusa/src/api/middlewares/publishable-api-key/extend-request-params.ts b/packages/medusa/src/api/middlewares/publishable-api-key/extend-request-params.ts
new file mode 100644
index 0000000000..a71c7939bc
--- /dev/null
+++ b/packages/medusa/src/api/middlewares/publishable-api-key/extend-request-params.ts
@@ -0,0 +1,40 @@
+import { NextFunction, Request, Response } from "express"
+
+import PublishableApiKeyService from "../../../services/publishable-api-key"
+
+export type PublishableApiKeyScopes = {
+  sales_channel_id: string[]
+}
+
+/**
+ * The middleware, in case that a key is present in the request header,
+ * attaches ids of resources within the scope of the key to the req object.
+ *
+ * @param req - request object
+ * @param res - response object
+ * @param next - next middleware call
+ *
+ * @throws if sales channel id is passed as a url or body param
+ *         but that id is not in the scope defined by the PK from the header
+ */
+async function extendRequestParams(
+  req: Request & { publishableApiKeyScopes: PublishableApiKeyScopes },
+  res: Response,
+  next: NextFunction
+) {
+  const pubKey = req.get("x-publishable-api-key")
+
+  if (pubKey) {
+    const publishableKeyService: PublishableApiKeyService = req.scope.resolve(
+      "publishableApiKeyService"
+    )
+
+    req.publishableApiKeyScopes = await publishableKeyService.getResourceScopes(
+      pubKey
+    )
+  }
+
+  next()
+}
+
+export { extendRequestParams }
diff --git a/packages/medusa/src/api/middlewares/publishable-api-key/validate-product-sales-channel-association.ts b/packages/medusa/src/api/middlewares/publishable-api-key/validate-product-sales-channel-association.ts
new file mode 100644
index 0000000000..d119ce734f
--- /dev/null
+++ b/packages/medusa/src/api/middlewares/publishable-api-key/validate-product-sales-channel-association.ts
@@ -0,0 +1,46 @@
+import { NextFunction, Request, Response } from "express"
+
+import PublishableApiKeyService from "../../../services/publishable-api-key"
+import { ProductService } from "../../../services"
+
+/**
+ * The middleware check if requested product is assigned to a SC associated with PK in the header.
+ *
+ * @param req - request object
+ * @param res - response object
+ * @param next - next middleware call
+ */
+async function validateProductSalesChannelAssociation(
+  req: Request,
+  res: Response,
+  next: NextFunction
+) {
+  const pubKey = req.get("x-publishable-api-key")
+
+  if (pubKey) {
+    const productService: ProductService = req.scope.resolve("productService")
+    const publishableKeyService: PublishableApiKeyService = req.scope.resolve(
+      "publishableApiKeyService"
+    )
+
+    const { sales_channel_id: salesChannelIds } =
+      await publishableKeyService.getResourceScopes(pubKey)
+
+    if (
+      salesChannelIds.length &&
+      !(await productService.isProductInSalesChannels(
+        req.params.id,
+        salesChannelIds
+      ))
+    ) {
+      req.errors = req.errors ?? []
+      req.errors.push(
+        `Product with id: ${req.params.id} is not associated with sales channels defined by the Publishable API Key passed in the header of the request.`
+      )
+    }
+  }
+
+  next()
+}
+
+export { validateProductSalesChannelAssociation }
diff --git a/packages/medusa/src/api/middlewares/publishable-api-key/validate-sales-channel-param.ts b/packages/medusa/src/api/middlewares/publishable-api-key/validate-sales-channel-param.ts
new file mode 100644
index 0000000000..657038c54d
--- /dev/null
+++ b/packages/medusa/src/api/middlewares/publishable-api-key/validate-sales-channel-param.ts
@@ -0,0 +1,46 @@
+import { NextFunction, Request, Response } from "express"
+
+import { PublishableApiKeyScopes } from "./extend-request-params"
+
+/**
+ * The middleware will return 400 if sales channel id is passed as an url or body param
+ * but that id is not in the scope of the PK from the header.
+ *
+ * NOTE: must be applied after the `extendRequestParams` middleware
+ *
+ * @param req - request object
+ * @param res - response object
+ * @param next - next middleware call
+ */
+async function validateSalesChannelParam(
+  req: Request & { publishableApiKeyScopes: PublishableApiKeyScopes },
+  res: Response,
+  next: NextFunction
+) {
+  const pubKey = req.get("x-publishable-api-key")
+
+  if (pubKey) {
+    const scopes = req.publishableApiKeyScopes
+    let channelIds = req.body.sales_channel_id || req.query.sales_channel_id
+
+    if (!channelIds) {
+      return next()
+    }
+
+    channelIds = !Array.isArray(channelIds) ? [channelIds] : channelIds
+
+    if (
+      scopes.sales_channel_id.length &&
+      !channelIds.every((sc) => scopes.sales_channel_id.includes(sc))
+    ) {
+      req.errors = req.errors ?? []
+      req.errors.push(
+        `Provided sales channel id param: ${channelIds} is not associated with the Publishable API Key passed in the header of the request.`
+      )
+    }
+  }
+
+  next()
+}
+
+export { validateSalesChannelParam }
diff --git a/packages/medusa/src/api/routes/admin/publishable-api-keys/add-channels-batch.ts b/packages/medusa/src/api/routes/admin/publishable-api-keys/add-channels-batch.ts
new file mode 100644
index 0000000000..7b29f22ce5
--- /dev/null
+++ b/packages/medusa/src/api/routes/admin/publishable-api-keys/add-channels-batch.ts
@@ -0,0 +1,124 @@
+import { IsArray, ValidateNested } from "class-validator"
+import { Request, Response } from "express"
+import { Type } from "class-transformer"
+import { EntityManager } from "typeorm"
+
+import { ProductBatchSalesChannel } from "../../../../types/sales-channels"
+import PublishableApiKeyService from "../../../../services/publishable-api-key"
+
+/**
+ * @oas [post] /publishable-api-keys/{id}/sales-channels/batch
+ * operationId: "PostPublishableApiKeySalesChannelsChannelsBatch"
+ * summary: "Add sales channel to a publishable api key scope"
+ * description: "Assign a batch of sales channels to a publishable api key."
+ * x-authenticated: true
+ * parameters:
+ *   - (path) id=* {string} The ID of the Publishable Api Key.
+ * requestBody:
+ *   content:
+ *     application/json:
+ *       schema:
+ *         required:
+ *           - sales_channel_ids
+ *         properties:
+ *           sales_channel_ids:
+ *             description: The IDs of the sales channels to add to the publishable api key
+ *             type: array
+ *             items:
+ *               type: object
+ *               required:
+ *                 - id
+ *               properties:
+ *                 id:
+ *                   type: string
+ *                   description: The ID of the sales channel
+ * x-codeSamples:
+ *   - lang: JavaScript
+ *     label: JS Client
+ *     source: |
+ *       import Medusa from "@medusajs/medusa-js"
+ *       const medusa = new Medusa({ baseUrl: MEDUSA_BACKEND_URL, maxRetries: 3 })
+ *       // must be previously logged in or use api token
+ *       medusa.admin.publishableApiKeys.addSalesChannels(publishableApiKeyId, {
+ *         sales_channel_ids: [
+ *           {
+ *             id: channel_id
+ *           }
+ *         ]
+ *       })
+ *       .then(({ publishable_api_key }) => {
+ *         console.log(publishable_api_key.id);
+ *       });
+ *   - lang: Shell
+ *     label: cURL
+ *     source: |
+ *       curl --location --request POST 'https://medusa-url.com/admin/publishable-api-keys/afasf/batch' \
+ *       --header 'Authorization: Bearer {api_token}' \
+ *       --header 'Content-Type: application/json' \
+ *       --data-raw '{
+ *           "sales_channel_ids": [
+ *             {
+ *               "id": "{sales_channel_id}"
+ *             }
+ *           ]
+ *       }'
+ * security:
+ *   - api_token: []
+ *   - cookie_auth: []
+ * tags:
+ *   - Publishable Api Key
+ * responses:
+ *   200:
+ *     description: OK
+ *     content:
+ *       application/json:
+ *         schema:
+ *           properties:
+ *             publishable_api_key:
+ *               $ref: "#/components/schemas/publishable_api_key"
+ *   "400":
+ *     $ref: "#/components/responses/400_error"
+ *   "401":
+ *     $ref: "#/components/responses/unauthorized"
+ *   "404":
+ *     $ref: "#/components/responses/not_found_error"
+ *   "409":
+ *     $ref: "#/components/responses/invalid_state_error"
+ *   "422":
+ *     $ref: "#/components/responses/invalid_request_error"
+ *   "500":
+ *     $ref: "#/components/responses/500_error"
+ */
+export default async (req: Request, res: Response): Promise<void> => {
+  const validatedBody =
+    req.validatedBody as AdminPostPublishableApiKeySalesChannelsBatchReq
+
+  const { id } = req.params
+
+  const publishableApiKeyService: PublishableApiKeyService = req.scope.resolve(
+    "publishableApiKeyService"
+  )
+
+  const manager: EntityManager = req.scope.resolve("manager")
+  const publishableApiKey = await manager.transaction(
+    async (transactionManager) => {
+      await publishableApiKeyService
+        .withTransaction(transactionManager)
+        .addSalesChannels(
+          id,
+          validatedBody.sales_channel_ids.map((p) => p.id)
+        )
+
+      return await publishableApiKeyService.retrieve(id)
+    }
+  )
+
+  res.status(200).json({ publishable_api_key: publishableApiKey })
+}
+
+export class AdminPostPublishableApiKeySalesChannelsBatchReq {
+  @IsArray()
+  @ValidateNested({ each: true })
+  @Type(() => ProductBatchSalesChannel)
+  sales_channel_ids: ProductBatchSalesChannel[]
+}
diff --git a/packages/medusa/src/api/routes/admin/publishable-api-keys/delete-channels-batch.ts b/packages/medusa/src/api/routes/admin/publishable-api-keys/delete-channels-batch.ts
new file mode 100644
index 0000000000..b3a0da6c11
--- /dev/null
+++ b/packages/medusa/src/api/routes/admin/publishable-api-keys/delete-channels-batch.ts
@@ -0,0 +1,124 @@
+import { IsArray, ValidateNested } from "class-validator"
+import { Request, Response } from "express"
+import { Type } from "class-transformer"
+import { EntityManager } from "typeorm"
+
+import { ProductBatchSalesChannel } from "../../../../types/sales-channels"
+import PublishableApiKeyService from "../../../../services/publishable-api-key"
+
+/**
+ * @oas [delete] /publishable-api-keys/{id}/sales-channels/batch
+ * operationId: "DeletePublishableApiKeySalesChannelsChannelsBatch"
+ * summary: "Remove sales channel from a publishable api key scope"
+ * description: "Remove a batch of sales channels from a publishable api key."
+ * x-authenticated: true
+ * parameters:
+ *   - (path) id=* {string} The ID of the Publishable Api Key.
+ * requestBody:
+ *   content:
+ *     application/json:
+ *       schema:
+ *         required:
+ *           - sales_channel_ids
+ *         properties:
+ *           sales_channel_ids:
+ *             description: The IDs of the sales channels to delete from the publishable api key
+ *             type: array
+ *             items:
+ *               type: object
+ *               required:
+ *                 - id
+ *               properties:
+ *                 id:
+ *                   type: string
+ *                   description: The ID of the sales channel
+ * x-codeSamples:
+ *   - lang: JavaScript
+ *     label: JS Client
+ *     source: |
+ *       import Medusa from "@medusajs/medusa-js"
+ *       const medusa = new Medusa({ baseUrl: MEDUSA_BACKEND_URL, maxRetries: 3 })
+ *       // must be previously logged in or use api token
+ *       medusa.admin.publishableApiKeys.removeSalesChannels(publishableApiKeyId, {
+ *         sales_channel_ids: [
+ *           {
+ *             id: channel_id
+ *           }
+ *         ]
+ *       })
+ *       .then(({ publishable_api_key }) => {
+ *         console.log(publishable_api_key.id);
+ *       });
+ *   - lang: Shell
+ *     label: cURL
+ *     source: |
+ *       curl --location --request DELETE 'https://medusa-url.com/admin/publishable-api-keys/afasf/batch' \
+ *       --header 'Authorization: Bearer {api_token}' \
+ *       --header 'Content-Type: application/json' \
+ *       --data-raw '{
+ *           "sales_channel_ids": [
+ *             {
+ *               "id": "{sales_channel_id}"
+ *             }
+ *           ]
+ *       }'
+ * security:
+ *   - api_token: []
+ *   - cookie_auth: []
+ * tags:
+ *   - Publishable Api Key
+ * responses:
+ *   200:
+ *     description: OK
+ *     content:
+ *       application/json:
+ *         schema:
+ *           properties:
+ *             publishable_api_key:
+ *               $ref: "#/components/schemas/publishable_api_key"
+ *   "400":
+ *     $ref: "#/components/responses/400_error"
+ *   "401":
+ *     $ref: "#/components/responses/unauthorized"
+ *   "404":
+ *     $ref: "#/components/responses/not_found_error"
+ *   "409":
+ *     $ref: "#/components/responses/invalid_state_error"
+ *   "422":
+ *     $ref: "#/components/responses/invalid_request_error"
+ *   "500":
+ *     $ref: "#/components/responses/500_error"
+ */
+export default async (req: Request, res: Response): Promise<void> => {
+  const validatedBody =
+    req.validatedBody as AdminDeletePublishableApiKeySalesChannelsBatchReq
+
+  const { id } = req.params
+
+  const publishableApiKeyService: PublishableApiKeyService = req.scope.resolve(
+    "publishableApiKeyService"
+  )
+
+  const manager: EntityManager = req.scope.resolve("manager")
+  const publishableApiKey = await manager.transaction(
+    async (transactionManager) => {
+      await publishableApiKeyService
+        .withTransaction(transactionManager)
+        .removeSalesChannels(
+          id,
+          validatedBody.sales_channel_ids.map((p) => p.id)
+        )
+
+      return await publishableApiKeyService.retrieve(id)
+    }
+  )
+
+  res.status(200).json({ publishable_api_key: publishableApiKey })
+}
+
+export class AdminDeletePublishableApiKeySalesChannelsBatchReq {
+  @IsArray()
+  @ValidateNested({ each: true })
+  @Type(() => ProductBatchSalesChannel)
+  sales_channel_ids: ProductBatchSalesChannel[]
+}
diff --git a/packages/medusa/src/api/routes/admin/publishable-api-keys/index.ts b/packages/medusa/src/api/routes/admin/publishable-api-keys/index.ts
index c53d5635b6..deda24d8e7 100644
--- a/packages/medusa/src/api/routes/admin/publishable-api-keys/index.ts
+++ b/packages/medusa/src/api/routes/admin/publishable-api-keys/index.ts
@@ -11,6 +11,9 @@ import { PublishableApiKey } from "../../../../models"
 import { DeleteResponse, PaginatedResponse } from "../../../../types/common"
 import { AdminPostPublishableApiKeysReq } from "./create-publishable-api-key"
 import { AdminPostPublishableApiKeysPublishableApiKeyReq } from "./update-publishable-api-key"
+import { AdminDeletePublishableApiKeySalesChannelsBatchReq } from "./delete-channels-batch"
+import { AdminPostPublishableApiKeySalesChannelsBatchReq } from "./add-channels-batch"
+import { GetPublishableApiKeySalesChannelsParams } from "./list-publishable-api-key-sales-channels"
 
 const route = Router()
 
@@ -55,6 +58,26 @@ export default (app) => {
     }),
     middlewares.wrap(require("./list-publishable-api-keys").default)
   )
+
+  route.get(
+    "/:id/sales-channels",
+    transformQuery(GetPublishableApiKeySalesChannelsParams, { isList: true }),
+    middlewares.wrap(
+      require("./list-publishable-api-key-sales-channels").default
+    )
+  )
+
+  route.post(
+    "/:id/sales-channels/batch",
+    transformBody(AdminPostPublishableApiKeySalesChannelsBatchReq),
+    middlewares.wrap(require("./add-channels-batch").default)
+  )
+
+  route.delete(
+    "/:id/sales-channels/batch",
+    transformBody(AdminDeletePublishableApiKeySalesChannelsBatchReq),
+    middlewares.wrap(require("./delete-channels-batch").default)
+  )
 }
 
 export type AdminPublishableApiKeysRes = {
@@ -65,6 +88,9 @@ export type AdminPublishableApiKeysListRes = PaginatedResponse & {
 }
 export type AdminPublishableApiKeyDeleteRes = DeleteResponse
 
+export * from "./add-channels-batch"
+export * from "./delete-channels-batch"
 export * from "./list-publishable-api-keys"
+export * from "./list-publishable-api-key-sales-channels"
 export * from "./create-publishable-api-key"
 export * from "./update-publishable-api-key"
diff --git a/packages/medusa/src/api/routes/admin/publishable-api-keys/list-publishable-api-key-sales-channels.ts b/packages/medusa/src/api/routes/admin/publishable-api-keys/list-publishable-api-key-sales-channels.ts
new file mode 100644
index 0000000000..3e3ff40ab9
--- /dev/null
+++ b/packages/medusa/src/api/routes/admin/publishable-api-keys/list-publishable-api-key-sales-channels.ts
@@ -0,0 +1,69 @@
+import { Request, Response } from "express"
+
+import PublishableApiKeyService from "../../../../services/publishable-api-key"
+
+/**
+ * @oas [get] /publishable-api-keys/:id/sales-channels
+ * operationId: "GetPublishableApiKeySalesChannels"
+ * summary: "List PublishableApiKey's SalesChannels"
+ * description: "List PublishableApiKey's SalesChannels"
+ * x-authenticated: true
+ * x-codeSamples:
+ *   - lang: JavaScript
+ *     label: JS Client
+ *     source: |
+ *       import Medusa from "@medusajs/medusa-js"
+ *       const medusa = new Medusa({ baseUrl: MEDUSA_BACKEND_URL, maxRetries: 3 })
+ *       // must be previously logged in or use api token
+ *       medusa.admin.publishableApiKeys.listSalesChannels()
+ *         .then(({ sales_channels, limit, offset, count }) => {
+ *           console.log(sales_channels)
+ *         })
+ *   - lang: Shell
+ *     label: cURL
+ *     source: |
+ *       curl --location --request GET 'https://medusa-url.com/admin/publishable-api-keys/pk_123/sales-channels' \
+ *       --header 'Authorization: Bearer {api_token}'
+ * security:
+ *   - api_token: []
+ *   - cookie_auth: []
+ * tags:
+ *   - PublishableApiKeySalesChannels
+ * responses:
+ *   200:
+ *     description: OK
+ *     content:
+ *       application/json:
+ *         schema:
+ *          properties:
+ *             sales_channels:
+ *               type: array
+ *               items:
+ *                 $ref: "#/components/schemas/sales_channel"
+ *   "400":
+ *     $ref: "#/components/responses/400_error"
+ *   "401":
+ *     $ref: "#/components/responses/unauthorized"
+ *   "404":
+ *     $ref: "#/components/responses/not_found_error"
+ *   "409":
+ *     $ref: "#/components/responses/invalid_state_error"
+ *   "422":
+ *     $ref: "#/components/responses/invalid_request_error"
+ *   "500":
+ *     $ref: "#/components/responses/500_error"
+ */
+export default async (req: Request, res: Response) => {
+  const { id } = req.params
+  const publishableApiKeyService: PublishableApiKeyService = req.scope.resolve(
+    "publishableApiKeyService"
+  )
+
+  const salesChannels = await publishableApiKeyService.listSalesChannels(id)
+
+  return res.json({
+    sales_channels: salesChannels,
+  })
+}
+
+export class GetPublishableApiKeySalesChannelsParams {}
diff --git a/packages/medusa/src/api/routes/admin/sales-channels/list-sales-channels.ts b/packages/medusa/src/api/routes/admin/sales-channels/list-sales-channels.ts
index 0864903c87..be7310befc 100644
--- a/packages/medusa/src/api/routes/admin/sales-channels/list-sales-channels.ts
+++ b/packages/medusa/src/api/routes/admin/sales-channels/list-sales-channels.ts
@@ -2,12 +2,11 @@ import {
   DateComparisonOperator,
   extendedFindParamsMixin,
 } from "../../../../types/common"
-import { IsNumber, IsOptional, IsString, ValidateNested } from "class-validator"
+import { IsOptional, IsString, ValidateNested } from "class-validator"
 import { Request, Response } from "express"
 
 import { SalesChannelService } from "../../../../services"
 import { Type } from "class-transformer"
-import { removeUndefinedProperties } from "../../../../utils"
 
 /**
  * @oas [get] /sales-channels
diff --git a/packages/medusa/src/api/routes/store/carts/create-cart.ts b/packages/medusa/src/api/routes/store/carts/create-cart.ts
index 1cda2f2437..d78c940f91 100644
--- a/packages/medusa/src/api/routes/store/carts/create-cart.ts
+++ b/packages/medusa/src/api/routes/store/carts/create-cart.ts
@@ -23,6 +23,7 @@ import { FlagRouter } from "../../../../utils/flag-router"
 import SalesChannelFeatureFlag from "../../../../loaders/feature-flags/sales-channels"
 import { CartCreateProps } from "../../../../types/cart"
 import { isDefined } from "../../../../utils"
+import PublishableAPIKeysFeatureFlag from "../../../../loaders/feature-flags/publishable-api-keys"
 
 /**
  * @oas [post] /carts
@@ -159,6 +160,23 @@ export default async (req, res) => {
     }
   }
 
+  if (featureFlagRouter.isFeatureEnabled(PublishableAPIKeysFeatureFlag.key)) {
+    if (
+      !toCreate.sales_channel_id &&
+      req.publishableApiKeyScopes?.sales_channel_id.length
+    ) {
+      if (req.publishableApiKeyScopes.sales_channel_id.length > 1) {
+        throw new MedusaError(
+          MedusaError.Types.UNEXPECTED_STATE,
+          "The PublishableApiKey provided in the request header has multiple associated sales channels."
+        )
+      }
+
+      toCreate.sales_channel_id =
+        req.publishableApiKeyScopes.sales_channel_id[0]
+    }
+  }
+
   let cart: Cart
   await entityManager.transaction(async (manager) => {
     cart = await cartService.withTransaction(manager).create(toCreate)
diff --git a/packages/medusa/src/api/routes/store/carts/index.ts b/packages/medusa/src/api/routes/store/carts/index.ts
index 550a817abf..cabccb1275 100644
--- a/packages/medusa/src/api/routes/store/carts/index.ts
+++ b/packages/medusa/src/api/routes/store/carts/index.ts
@@ -1,5 +1,6 @@
-import { Router } from "express"
 import "reflect-metadata"
+import { RequestHandler, Router } from "express"
+
 import { Cart, Order, Swap } from "../../../../"
 import { DeleteResponse, FindParams } from "../../../../types/common"
 import middlewares, {
@@ -8,6 +9,10 @@ import middlewares, {
 } from "../../../middlewares"
 import { StorePostCartsCartReq } from "./update-cart"
 import { StorePostCartReq } from "./create-cart"
+import SalesChannelFeatureFlag from "../../../../loaders/feature-flags/sales-channels"
+import PublishableAPIKeysFeatureFlag from "../../../../loaders/feature-flags/publishable-api-keys"
+import { extendRequestParams } from "../../../middlewares/publishable-api-key/extend-request-params"
+import { validateSalesChannelParam } from "../../../middlewares/publishable-api-key/validate-sales-channel-param"
 
 const route = Router()
 
@@ -17,7 +22,7 @@ export default (app, container) => {
 
   app.use("/carts", route)
 
-  if (featureFlagRouter.isFeatureEnabled("sales_channels")) {
+  if (featureFlagRouter.isFeatureEnabled(SalesChannelFeatureFlag.key)) {
     defaultStoreCartRelations.push("sales_channel")
   }
 
@@ -37,10 +42,21 @@ export default (app, container) => {
     middlewares.wrap(require("./get-cart").default)
   )
 
-  route.post(
-    "/",
+  const createMiddlewares = [
     middlewareService.usePreCartCreation(),
     transformBody(StorePostCartReq),
+  ]
+
+  if (featureFlagRouter.isFeatureEnabled(PublishableAPIKeysFeatureFlag.key)) {
+    createMiddlewares.push(
+      extendRequestParams as unknown as RequestHandler,
+      validateSalesChannelParam as unknown as RequestHandler
+    )
+  }
+
+  route.post(
+    "/",
+    ...createMiddlewares,
     middlewares.wrap(require("./create-cart").default)
   )
 
diff --git a/packages/medusa/src/api/routes/store/index.js b/packages/medusa/src/api/routes/store/index.js
index ed917231ba..e5cee0d1bc 100644
--- a/packages/medusa/src/api/routes/store/index.js
+++ b/packages/medusa/src/api/routes/store/index.js
@@ -31,12 +31,14 @@ export default (app, container, config) => {
     })
   )
 
+  const featureFlagRouter = container.resolve("featureFlagRouter")
+
   route.use(middlewares.authenticateCustomer())
 
   authRoutes(route)
   collectionRoutes(route)
   customerRoutes(route, container)
-  productRoutes(route)
+  productRoutes(route, featureFlagRouter)
   productTypesRoutes(route)
   orderRoutes(route)
   orderEditRoutes(route)
diff --git a/packages/medusa/src/api/routes/store/products/index.ts b/packages/medusa/src/api/routes/store/products/index.ts
index 72a349cfc0..b9eb230541 100644
--- a/packages/medusa/src/api/routes/store/products/index.ts
+++ b/packages/medusa/src/api/routes/store/products/index.ts
@@ -1,17 +1,32 @@
-import { Router } from "express"
+import { RequestHandler, Router } from "express"
 import "reflect-metadata"
+
 import { Product } from "../../../.."
-import { PaginatedResponse } from "../../../../types/common"
 import middlewares from "../../../middlewares"
+import { FlagRouter } from "../../../../utils/flag-router"
+import { PaginatedResponse } from "../../../../types/common"
+import { extendRequestParams } from "../../../middlewares/publishable-api-key/extend-request-params"
+import PublishableAPIKeysFeatureFlag from "../../../../loaders/feature-flags/publishable-api-keys"
+import { validateProductSalesChannelAssociation } from "../../../middlewares/publishable-api-key/validate-product-sales-channel-association"
+import { validateSalesChannelParam } from "../../../middlewares/publishable-api-key/validate-sales-channel-param"
 
 const route = Router()
 
-export default (app) => {
+export default (app, featureFlagRouter: FlagRouter) => {
   app.use("/products", route)
 
+  if (featureFlagRouter.isFeatureEnabled(PublishableAPIKeysFeatureFlag.key)) {
+    route.use(
+      "/",
+      extendRequestParams as unknown as RequestHandler,
+      validateSalesChannelParam as unknown as RequestHandler
+    )
+    route.use("/:id", validateProductSalesChannelAssociation)
+  }
+
   route.get("/", middlewares.wrap(require("./list-products").default))
-  route.post("/search", middlewares.wrap(require("./search").default))
   route.get("/:id", middlewares.wrap(require("./get-product").default))
+  route.post("/search", middlewares.wrap(require("./search").default))
 
   return app
 }
diff --git a/packages/medusa/src/api/routes/store/products/list-products.ts b/packages/medusa/src/api/routes/store/products/list-products.ts
index ee376c81b4..393e81f397 100644
--- a/packages/medusa/src/api/routes/store/products/list-products.ts
+++ b/packages/medusa/src/api/routes/store/products/list-products.ts
@@ -25,6 +25,8 @@ import { FeatureFlagDecorators } from "../../../../utils/feature-flag-decorators
 import { validator } from "../../../../utils/validator"
 import { optionalBooleanMapper } from "../../../../utils/validators/is-boolean"
 import { IsType } from "../../../../utils/validators/is-type"
+import { FlagRouter } from "../../../../utils/flag-router"
+import PublishableAPIKeysFeatureFlag from "../../../../loaders/feature-flags/publishable-api-keys"
 
 /**
  * @oas [get] /products
@@ -195,8 +197,18 @@ export default async (req, res) => {
   const cartService: CartService = req.scope.resolve("cartService")
   const regionService: RegionService = req.scope.resolve("regionService")
 
+  const featureFlagRouter: FlagRouter = req.scope.resolve("featureFlagRouter")
+
   const validated = await validator(StoreGetProductsParams, req.query)
 
+  if (featureFlagRouter.isFeatureEnabled(PublishableAPIKeysFeatureFlag.key)) {
+    if (req.publishableApiKeyScopes?.sales_channel_id.length) {
+      validated.sales_channel_id =
+        validated.sales_channel_id ||
+        req.publishableApiKeyScopes.sales_channel_id
+    }
+  }
+
   const filterableFields: StoreGetProductsParams = omit(validated, [
     "fields",
     "expand",
diff --git a/packages/medusa/src/repositories/product.ts b/packages/medusa/src/repositories/product.ts
index 280eb6be54..fdb5417e6c 100644
--- a/packages/medusa/src/repositories/product.ts
+++ b/packages/medusa/src/repositories/product.ts
@@ -397,6 +397,22 @@ export class ProductRepository extends Repository<Product> {
     return [products, count]
   }
 
+  public async isProductInSalesChannels(
+    id: string,
+    salesChannelIds: string[]
+  ): Promise<boolean> {
+    return (
+      (await this.createQueryBuilder("product")
+        .leftJoin(
+          "product.sales_channels",
+          "sales_channels",
+          "sales_channels.id IN (:...salesChannelIds)",
+          { salesChannelIds }
+        )
+        .getCount()) > 0
+    )
+  }
+
   private _cleanOptions(
     options: FindWithoutRelationsOptions
   ): WithRequiredProperty<FindWithoutRelationsOptions, "where"> {
diff --git a/packages/medusa/src/repositories/publishable-api-key-sales-channel.ts b/packages/medusa/src/repositories/publishable-api-key-sales-channel.ts
new file mode 100644
index 0000000000..7d64217506
--- /dev/null
+++ b/packages/medusa/src/repositories/publishable-api-key-sales-channel.ts
@@ -0,0 +1,78 @@
+import { EntityRepository, In, Repository } from "typeorm"
+
+import { PublishableApiKeySalesChannel, SalesChannel } from "../models"
+
+@EntityRepository(PublishableApiKeySalesChannel)
+export class PublishableApiKeySalesChannelRepository extends Repository<PublishableApiKeySalesChannel> {
+  /**
+   * Query a list of sales channels that are assigned to the publishable key scope
+   *
+   * @param publishableApiKeyId - id of the key to retrieve channels for
+   */
+  public async findSalesChannels(
+    publishableApiKeyId: string
+  ): Promise<SalesChannel[]> {
+    const data = await this.createQueryBuilder("PublishableKeySalesChannel")
+      .select("PublishableKeySalesChannel.sales_channel_id")
+      .innerJoinAndMapOne(
+        "PublishableKeySalesChannel.sales_channel_id",
+        SalesChannel,
+        "SalesChannel",
+        "PublishableKeySalesChannel.sales_channel_id = SalesChannel.id"
+      )
+      .where(
+        "PublishableKeySalesChannel.publishable_key_id = :publishableApiKeyId",
+        {
+          publishableApiKeyId,
+        }
+      )
+      .getMany()
+
+    return data.map(
+      (record) => record.sales_channel_id as unknown as SalesChannel
+    )
+  }
+
+  /**
+   * Assign (multiple) sales channels to the Publishable Key scope
+   *
+   * @param publishableApiKeyId - publishable key id
+   * @param salesChannelIds - an array of SC ids
+   */
+  public async addSalesChannels(
+    publishableApiKeyId: string,
+    salesChannelIds: string[]
+  ): Promise<void> {
+    await this.createQueryBuilder()
+      .insert()
+      .into("publishable_api_key_sales_channel")
+      .values(
+        salesChannelIds.map((id) => ({
+          sales_channel_id: id,
+          publishable_key_id: publishableApiKeyId,
+        }))
+      )
+      .orIgnore()
+      .execute()
+  }
+
+  /**
+   * Remove multiple sales channels from the PK scope
+   *
+   * @param publishableApiKeyId -publishable key id
+   * @param salesChannelIds - an array of SC ids
+   */
+  public async removeSalesChannels(
+    publishableApiKeyId: string,
+    salesChannelIds: string[]
+  ): Promise<void> {
+    await this.createQueryBuilder()
+      .delete()
+      .from("publishable_api_key_sales_channel")
+      .where({
+        sales_channel_id: In(salesChannelIds),
+        publishable_key_id: publishableApiKeyId,
+      })
+      .execute()
+  }
+}
diff --git a/packages/medusa/src/repositories/publishable-api-key.ts b/packages/medusa/src/repositories/publishable-api-key.ts
index 7a72d70bac..a3cd1c0e3c 100644
--- a/packages/medusa/src/repositories/publishable-api-key.ts
+++ b/packages/medusa/src/repositories/publishable-api-key.ts
@@ -1,7 +1,7 @@
 import { flatten, groupBy, merge } from "lodash"
 import { EntityRepository, FindManyOptions, Repository } from "typeorm"
 
-import { PublishableApiKey } from "../models/publishable-api-key"
+import { PublishableApiKey } from "../models"
 
 @EntityRepository(PublishableApiKey)
 export class PublishableApiKeyRepository extends Repository<PublishableApiKey> {
diff --git a/packages/medusa/src/services/__tests__/publishable-api-key.ts b/packages/medusa/src/services/__tests__/publishable-api-key.ts
index 3cdb1a1a86..2442f0e3e2 100644
--- a/packages/medusa/src/services/__tests__/publishable-api-key.ts
+++ b/packages/medusa/src/services/__tests__/publishable-api-key.ts
@@ -27,8 +27,12 @@ describe("PublishableApiKeyService", () => {
     },
   })
 
+  const publishableApiKeySalesChannelRepository = MockRepository({})
+
   const publishableApiKeyService = new PublishableApiKeyService({
     manager: MockManager,
+    publishableApiKeySalesChannelRepository:
+      publishableApiKeySalesChannelRepository,
     publishableApiKeyRepository: publishableApiKeyRepository,
     eventBusService: EventBusServiceMock as unknown as EventBusService,
   })
diff --git a/packages/medusa/src/services/product.ts b/packages/medusa/src/services/product.ts
index 9a22d69354..2e1d37fd20 100644
--- a/packages/medusa/src/services/product.ts
+++ b/packages/medusa/src/services/product.ts
@@ -324,6 +324,29 @@ class ProductService extends TransactionBaseService {
     return await productTagRepo.listTagsByUsage(count)
   }
 
+  /**
+   * Check if the product is assigned to at least one of the provided sales channels.
+   *
+   * @param id - product id
+   * @param salesChannelIds - an array of sales channel ids
+   */
+  async isProductInSalesChannels(
+    id: string,
+    salesChannelIds: string[]
+  ): Promise<boolean> {
+    const product = await this.retrieve_(
+      { id },
+      { relations: ["sales_channels"] }
+    )
+
+    // TODO: reimplement this to use db level check
+    const productsSalesChannels = product.sales_channels.map(
+      (channel) => channel.id
+    )
+
+    return productsSalesChannels.some((id) => salesChannelIds.includes(id))
+  }
+
   /**
    * Creates a product.
    * @param productObject - the product to create
diff --git a/packages/medusa/src/services/publishable-api-key.ts b/packages/medusa/src/services/publishable-api-key.ts
index 4b87543646..f2e1da3433 100644
--- a/packages/medusa/src/services/publishable-api-key.ts
+++ b/packages/medusa/src/services/publishable-api-key.ts
@@ -3,7 +3,7 @@ import { MedusaError } from "medusa-core-utils"
 
 import { PublishableApiKeyRepository } from "../repositories/publishable-api-key"
 import { FindConfig, Selector } from "../types/common"
-import { PublishableApiKey } from "../models"
+import { PublishableApiKey, SalesChannel } from "../models"
 import { TransactionBaseService } from "../interfaces"
 import EventBusService from "./event-bus"
 import { buildQuery, isDefined, isString } from "../utils"
@@ -11,12 +11,14 @@ import {
   CreatePublishableApiKeyInput,
   UpdatePublishableApiKeyInput,
 } from "../types/publishable-api-key"
+import { PublishableApiKeySalesChannelRepository } from "../repositories/publishable-api-key-sales-channel"
 
 type InjectedDependencies = {
   manager: EntityManager
 
   eventBusService: EventBusService
   publishableApiKeyRepository: typeof PublishableApiKeyRepository
+  publishableApiKeySalesChannelRepository: typeof PublishableApiKeySalesChannelRepository
 }
 
 /**
@@ -33,17 +35,21 @@ class PublishableApiKeyService extends TransactionBaseService {
 
   protected readonly eventBusService_: EventBusService
   protected readonly publishableApiKeyRepository_: typeof PublishableApiKeyRepository
+  protected readonly publishableApiKeySalesChannelRepository_: typeof PublishableApiKeySalesChannelRepository
 
   constructor({
     manager,
     eventBusService,
     publishableApiKeyRepository,
+    publishableApiKeySalesChannelRepository,
   }: InjectedDependencies) {
     super(arguments[0])
 
     this.manager_ = manager
     this.eventBusService_ = eventBusService
     this.publishableApiKeyRepository_ = publishableApiKeyRepository
+    this.publishableApiKeySalesChannelRepository_ =
+      publishableApiKeySalesChannelRepository
   }
 
   /**
@@ -247,6 +253,91 @@ class PublishableApiKeyService extends TransactionBaseService {
     const pubKey = await this.retrieve(publishableApiKeyId)
     return pubKey.revoked_by === null
   }
+
+  /**
+   * Associate provided sales channels with the publishable api key.
+   *
+   * @param publishableApiKeyId
+   * @param salesChannelIds
+   */
+  async addSalesChannels(
+    publishableApiKeyId: string,
+    salesChannelIds: string[]
+  ): Promise<void | never> {
+    return await this.atomicPhase_(async (transactionManager) => {
+      const pubKeySalesChannelRepo = transactionManager.getCustomRepository(
+        this.publishableApiKeySalesChannelRepository_
+      )
+
+      await pubKeySalesChannelRepo.addSalesChannels(
+        publishableApiKeyId,
+        salesChannelIds
+      )
+    })
+  }
+
+  /**
+   * Remove provided sales channels from the publishable api key scope.
+   *
+   * @param publishableApiKeyId
+   * @param salesChannelIds
+   */
+  async removeSalesChannels(
+    publishableApiKeyId: string,
+    salesChannelIds: string[]
+  ): Promise<void | never> {
+    return await this.atomicPhase_(async (transactionManager) => {
+      const pubKeySalesChannelRepo = transactionManager.getCustomRepository(
+        this.publishableApiKeySalesChannelRepository_
+      )
+
+      await pubKeySalesChannelRepo.removeSalesChannels(
+        publishableApiKeyId,
+        salesChannelIds
+      )
+    })
+  }
+
+  /**
+   * List SalesChannels associated with the PublishableKey
+   *
+   * @param publishableApiKeyId - id of the key SalesChannels are listed for
+   */
+  async listSalesChannels(
+    publishableApiKeyId: string
+  ): Promise<SalesChannel[]> {
+    const manager = this.manager_
+    const pubKeySalesChannelRepo = manager.getCustomRepository(
+      this.publishableApiKeySalesChannelRepository_
+    )
+
+    return await pubKeySalesChannelRepo.findSalesChannels(publishableApiKeyId)
+  }
+
+  /**
+   * Get a map of resources ids that are withing the key's scope.
+   *
+   * @param publishableApiKeyId
+   */
+  async getResourceScopes(
+    publishableApiKeyId: string
+  ): Promise<{ sales_channel_id: string[] }> {
+    const manager = this.manager_
+    const pubKeySalesChannelRepo = manager.getCustomRepository(
+      this.publishableApiKeySalesChannelRepository_
+    )
+
+    const salesChannels = await pubKeySalesChannelRepo.find({
+      select: ["sales_channel_id"],
+      where: { publishable_key_id: publishableApiKeyId },
+    })
+
+    return {
+      sales_channel_id: salesChannels.map(
+        ({ sales_channel_id }) => sales_channel_id
+      ),
+    }
+  }
 }
 
 export default PublishableApiKeyService