diff --git a/integration-tests/modules/__tests__/inventory/index.spec.ts b/integration-tests/modules/__tests__/inventory/index.spec.ts
index 83ecd80d27..eee602fc79 100644
--- a/integration-tests/modules/__tests__/inventory/index.spec.ts
+++ b/integration-tests/modules/__tests__/inventory/index.spec.ts
@@ -417,32 +417,12 @@ medusaIntegrationTestRunner({
         })
       })
 
-      describe.skip("Create inventory items", () => {
+      describe("Create inventory items", () => {
         it("should create inventory items", async () => {
-          const createResult = await api.post(
-            `/admin/products`,
-            {
-              title: "Test Product",
-              variants: [
-                {
-                  title: "Test Variant w. inventory 2",
-                  sku: "MY_SKU1",
-                  material: "material",
-                },
-              ],
-            },
-            adminHeaders
-          )
-
-          const inventoryItems = await service.list()
-
-          expect(inventoryItems).toHaveLength(0)
-
           const response = await api.post(
             `/admin/inventory-items`,
             {
               sku: "test-sku",
-              variant_id: createResult.data.product.variants[0].id,
             },
             adminHeaders
           )
@@ -454,143 +434,6 @@ medusaIntegrationTestRunner({
             })
           )
         })
-
-        it("should attach inventory items on creation", async () => {
-          const createResult = await api.post(
-            `/admin/products`,
-            {
-              title: "Test Product",
-              variants: [
-                {
-                  title: "Test Variant w. inventory 2",
-                  sku: "MY_SKU1",
-                  material: "material",
-                },
-              ],
-            },
-            adminHeaders
-          )
-
-          const inventoryItems = await service.list()
-
-          expect(inventoryItems).toHaveLength(0)
-
-          await api.post(
-            `/admin/inventory-items`,
-            {
-              sku: "test-sku",
-              variant_id: createResult.data.product.variants[0].id,
-            },
-            adminHeaders
-          )
-
-          const remoteQuery = appContainer.resolve(
-            ContainerRegistrationKeys.REMOTE_QUERY
-          )
-
-          const query = remoteQueryObjectFromString({
-            entryPoint: "product_variant_inventory_item",
-            variables: {
-              variant_id: createResult.data.product.variants[0].id,
-            },
-            fields: ["inventory_item_id", "variant_id"],
-          })
-
-          const existingItems = await remoteQuery(query)
-
-          expect(existingItems).toHaveLength(1)
-          expect(existingItems[0].variant_id).toEqual(
-            createResult.data.product.variants[0].id
-          )
-        })
-      })
-
-      describe.skip("Create inventory items", () => {
-        it("should create inventory items", async () => {
-          const createResult = await api.post(
-            `/admin/products`,
-            {
-              title: "Test Product",
-              variants: [
-                {
-                  title: "Test Variant w. inventory 2",
-                  sku: "MY_SKU1",
-                  material: "material",
-                },
-              ],
-            },
-            adminHeaders
-          )
-
-          const inventoryItems = await service.list({})
-
-          expect(inventoryItems).toHaveLength(0)
-
-          const response = await api.post(
-            `/admin/inventory-items`,
-            {
-              sku: "test-sku",
-              variant_id: createResult.data.product.variants[0].id,
-            },
-            adminHeaders
-          )
-
-          expect(response.status).toEqual(200)
-          expect(response.data.inventory_item).toEqual(
-            expect.objectContaining({
-              sku: "test-sku",
-            })
-          )
-        })
-
-        it("should attach inventory items on creation", async () => {
-          const createResult = await api.post(
-            `/admin/products`,
-            {
-              title: "Test Product",
-              variants: [
-                {
-                  title: "Test Variant w. inventory 2",
-                  sku: "MY_SKU1",
-                  material: "material",
-                },
-              ],
-            },
-            adminHeaders
-          )
-
-          const inventoryItems = await service.list({})
-
-          expect(inventoryItems).toHaveLength(0)
-
-          await api.post(
-            `/admin/inventory-items`,
-            {
-              sku: "test-sku",
-              variant_id: createResult.data.product.variants[0].id,
-            },
-            adminHeaders
-          )
-
-          const remoteQuery = appContainer.resolve(
-            ContainerRegistrationKeys.REMOTE_QUERY
-          )
-
-          const query = remoteQueryObjectFromString({
-            entryPoint: "product_variant_inventory_item",
-            variables: {
-              variant_id: createResult.data.product.variants[0].id,
-            },
-            fields: ["inventory_item_id", "variant_id"],
-          })
-
-          const existingItems = await remoteQuery(query)
-
-          expect(existingItems).toHaveLength(1)
-          expect(existingItems[0].variant_id).toEqual(
-            createResult.data.product.variants[0].id
-          )
-        })
       })
 
       describe("List inventory items", () => {
diff --git a/packages/core-flows/src/inventory/steps/attach-inventory-items.ts b/packages/core-flows/src/inventory/steps/attach-inventory-items.ts
new file mode 100644
index 0000000000..e3ffddc37b
--- /dev/null
+++ b/packages/core-flows/src/inventory/steps/attach-inventory-items.ts
@@ -0,0 +1,43 @@
+import { StepResponse, createStep } from "@medusajs/workflows-sdk"
+
+import { ContainerRegistrationKeys } from "@medusajs/utils"
+import { InventoryItemDTO } from "@medusajs/types"
+
+export const attachInventoryItemToVariantsStepId =
+  "attach-inventory-items-to-variants-step"
+export const attachInventoryItemToVariants = createStep(
+  attachInventoryItemToVariantsStepId,
+  async (
+    input: {
+      inventoryItemId: string
+      tag?: string
+    }[],
+    { container }
+  ) => {
+    const remoteLink = container.resolve(ContainerRegistrationKeys.REMOTE_LINK)
+
+    const linkDefinitions = input
+      .filter(({ tag }) => !!tag)
+      .map(({ inventoryItemId, tag }) => ({
+        productService: {
+          variant_id: tag,
+        },
+        inventoryService: {
+          inventory_item_id: inventoryItemId,
+        },
+      }))
+
+    const links = await remoteLink.create(linkDefinitions)
+
+    return new StepResponse(links, linkDefinitions)
+  },
+  async (linkDefinitions, { container }) => {
+    if (!linkDefinitions?.length) {
+      return
+    }
+
+    const remoteLink = container.resolve(ContainerRegistrationKeys.REMOTE_LINK)
+
+    await remoteLink.dismiss(linkDefinitions)
+  }
+)
diff --git a/packages/core-flows/src/inventory/steps/create-inventory-items.ts b/packages/core-flows/src/inventory/steps/create-inventory-items.ts
new file mode 100644
index 0000000000..efe2365eca
--- /dev/null
+++ b/packages/core-flows/src/inventory/steps/create-inventory-items.ts
@@ -0,0 +1,34 @@
+import { StepResponse, createStep } from "@medusajs/workflows-sdk"
+
+import { CreateInventoryItemInput } from "@medusajs/types"
+import { IInventoryServiceNext } from "@medusajs/types"
+import { InventoryNext } from "@medusajs/types"
+import { ModuleRegistrationName } from "../../../../modules-sdk/dist"
+import { promiseAll } from "@medusajs/utils"
+
+export const createInventoryItemsStepId = "create-inventory-items"
+export const createInventoryItemsStep = createStep(
+  createInventoryItemsStepId,
+  async (data: InventoryNext.CreateInventoryItemInput[], { container }) => {
+    const inventoryService: IInventoryServiceNext = container.resolve(
+      ModuleRegistrationName.INVENTORY
+    )
+
+    const createdItems: InventoryNext.InventoryItemDTO[] =
+      await inventoryService.create(data)
+
+    return new StepResponse(
+      createdItems,
+      createdItems.map((i) => i.id)
+    )
+  },
+  async (data: string[] | undefined, { container }) => {
+    if (!data?.length) {
+      return
+    }
+
+    const inventoryService = container.resolve(ModuleRegistrationName.INVENTORY)
+
+    await inventoryService!.delete(data)
+  }
+)
diff --git a/packages/core-flows/src/inventory/steps/index.ts b/packages/core-flows/src/inventory/steps/index.ts
index 26b4abc742..8171259165 100644
--- a/packages/core-flows/src/inventory/steps/index.ts
+++ b/packages/core-flows/src/inventory/steps/index.ts
@@ -1,2 +1,5 @@
+export * from "./attach-inventory-items"
+export * from "./create-inventory-items"
+export * from "./validate-singular-inventory-items-for-tags"
 export * from "./create-inventory-levels"
 export * from "./validate-inventory-locations"
diff --git a/packages/core-flows/src/inventory/steps/validate-singular-inventory-items-for-tags.ts b/packages/core-flows/src/inventory/steps/validate-singular-inventory-items-for-tags.ts
new file mode 100644
index 0000000000..bc1cbcf6c1
--- /dev/null
+++ b/packages/core-flows/src/inventory/steps/validate-singular-inventory-items-for-tags.ts
@@ -0,0 +1,45 @@
+import {
+  ContainerRegistrationKeys,
+  MedusaError,
+  remoteQueryObjectFromString,
+} from "@medusajs/utils"
+import { StepResponse, createStep } from "@medusajs/workflows-sdk"
+
+import { InventoryNext } from "@medusajs/types"
+import { Modules } from "@medusajs/modules-sdk"
+
+export const validateInventoryItemsForCreateStepId =
+  "validate-inventory-items-for-create-step"
+export const validateInventoryItemsForCreate = createStep(
+  validateInventoryItemsForCreateStepId,
+  async (
+    input: {
+      tag?: string
+    }[],
+    { container }
+  ) => {
+    const remoteLink = container.resolve(ContainerRegistrationKeys.REMOTE_LINK)
+
+    const linkService = remoteLink.getLinkModule(
+      Modules.PRODUCT,
+      "variant_id",
+      Modules.INVENTORY,
+      "inventory_item_id"
+    )
+
+    const existingItems = await linkService.list(
+      { variant_id: input.map((i) => i.tag) },
+      { select: ["variant_id", "inventory_item_id"] }
+    )
+
+    if (existingItems.length) {
+      throw new MedusaError(
+        MedusaError.Types.NOT_ALLOWED,
+        "Inventory items already exist for variants with ids: " +
+          existingItems.map((i) => i.variant_id).join(", ")
+      )
+    }
+
+    return new StepResponse(input)
+  }
+)
diff --git a/packages/core-flows/src/inventory/workflows/create-inventory-items.ts b/packages/core-flows/src/inventory/workflows/create-inventory-items.ts
new file mode 100644
index 0000000000..f077e353aa
--- /dev/null
+++ b/packages/core-flows/src/inventory/workflows/create-inventory-items.ts
@@ -0,0 +1,26 @@
+import {
+  WorkflowData,
+  createWorkflow,
+  transform,
+} from "@medusajs/workflows-sdk"
+import {
+  attachInventoryItemToVariants,
+  createInventoryItemsStep,
+  validateInventoryItemsForCreate,
+} from "../steps"
+
+import { InventoryNext } from "@medusajs/types"
+
+interface WorkflowInput {
+  items: InventoryNext.CreateInventoryItemInput[]
+}
+
+export const createInventoryItemsWorkflowId = "create-inventory-items-workflow"
+export const createInventoryItemsWorkflow = createWorkflow(
+  createInventoryItemsWorkflowId,
+  (input: WorkflowData<WorkflowInput>) => {
+    const items = createInventoryItemsStep(input.items)
+
+    return items
+  }
+)
diff --git a/packages/core-flows/src/inventory/workflows/index.ts b/packages/core-flows/src/inventory/workflows/index.ts
index c8fa3b339b..46378681d5 100644
--- a/packages/core-flows/src/inventory/workflows/index.ts
+++ b/packages/core-flows/src/inventory/workflows/index.ts
@@ -1 +1,2 @@
+export * from "./create-inventory-items"
 export * from "./create-inventory-levels"
diff --git a/packages/medusa/src/api-v2/admin/inventory-items/middlewares.ts b/packages/medusa/src/api-v2/admin/inventory-items/middlewares.ts
index 47bc320384..dd3dfbf883 100644
--- a/packages/medusa/src/api-v2/admin/inventory-items/middlewares.ts
+++ b/packages/medusa/src/api-v2/admin/inventory-items/middlewares.ts
@@ -4,6 +4,7 @@ import {
   AdminGetInventoryItemsItemParams,
   AdminGetInventoryItemsParams,
   AdminPostInventoryItemsItemLocationLevelsReq,
+  AdminPostInventoryItemsReq,
 } from "./validators"
 import { transformBody, transformQuery } from "../../../api/middlewares"
 
@@ -14,7 +15,7 @@ export const adminInventoryRoutesMiddlewares: MiddlewareRoute[] = [
   {
     method: "ALL",
     matcher: "/admin/inventory-items*",
-    middlewares: [authenticate("admin", ["session", "bearer"])],
+    middlewares: [authenticate("admin", ["session", "bearer", "api-key"])],
   },
   {
     method: ["GET"],
@@ -41,4 +42,15 @@ export const adminInventoryRoutesMiddlewares: MiddlewareRoute[] = [
     matcher: "/admin/inventory-items/:id/location-levels",
     middlewares: [transformBody(AdminPostInventoryItemsItemLocationLevelsReq)],
   },
+  {
+    method: ["POST"],
+    matcher: "/admin/inventory-items",
+    middlewares: [
+      transformBody(AdminPostInventoryItemsReq),
+      transformQuery(
+        AdminGetInventoryItemsItemParams,
+        QueryConfig.retrieveTransformQueryConfig
+      ),
+    ],
+  },
 ]
diff --git a/packages/medusa/src/api-v2/admin/inventory-items/query-config.ts b/packages/medusa/src/api-v2/admin/inventory-items/query-config.ts
index 4dbbd6eb64..f78976be27 100644
--- a/packages/medusa/src/api-v2/admin/inventory-items/query-config.ts
+++ b/packages/medusa/src/api-v2/admin/inventory-items/query-config.ts
@@ -1,8 +1,5 @@
 import { InventoryNext } from "@medusajs/types"
 
-export const defaultAdminInventoryItemRelations = []
-export const allowedAdminInventoryItemRelations = []
-
 // eslint-disable-next-line max-len
 export const defaultAdminLocationLevelFields: (keyof InventoryNext.InventoryLevelDTO)[] =
   [
@@ -44,9 +41,8 @@ export const defaultAdminInventoryItemFields = [
 ]
 
 export const retrieveTransformQueryConfig = {
-  defaultFields: defaultAdminInventoryItemFields,
-  defaultRelations: defaultAdminInventoryItemRelations,
-  allowedRelations: allowedAdminInventoryItemRelations,
+  defaults: defaultAdminInventoryItemFields,
+  allowed: defaultAdminInventoryItemFields,
   isList: false,
 }
 
diff --git a/packages/medusa/src/api-v2/admin/inventory-items/route.ts b/packages/medusa/src/api-v2/admin/inventory-items/route.ts
index bc32976c57..0892821f05 100644
--- a/packages/medusa/src/api-v2/admin/inventory-items/route.ts
+++ b/packages/medusa/src/api-v2/admin/inventory-items/route.ts
@@ -7,6 +7,33 @@ import {
   remoteQueryObjectFromString,
 } from "@medusajs/utils"
 
+import { AdminPostInventoryItemsReq } from "./validators"
+import { createInventoryItemsWorkflow } from "@medusajs/core-flows"
+
+// Create inventory-item
+export const POST = async (
+  req: AuthenticatedMedusaRequest<AdminPostInventoryItemsReq>,
+  res: MedusaResponse
+) => {
+  const remoteQuery = req.scope.resolve(ContainerRegistrationKeys.REMOTE_QUERY)
+
+  const { result } = await createInventoryItemsWorkflow(req.scope).run({
+    input: { items: [req.validatedBody] },
+  })
+
+  const [inventory_item] = await remoteQuery(
+    remoteQueryObjectFromString({
+      entryPoint: "inventory_items",
+      variables: {
+        id: result[0].id,
+      },
+      fields: req.retrieveConfig.select as string[],
+    })
+  )
+
+  res.status(200).json({ inventory_item })
+}
+
 // List inventory-items
 export const GET = async (
   req: AuthenticatedMedusaRequest,
diff --git a/packages/medusa/src/api-v2/admin/inventory-items/validators.ts b/packages/medusa/src/api-v2/admin/inventory-items/validators.ts
index b88bbd2713..90a93fa634 100644
--- a/packages/medusa/src/api-v2/admin/inventory-items/validators.ts
+++ b/packages/medusa/src/api-v2/admin/inventory-items/validators.ts
@@ -135,3 +135,125 @@ export class AdminPostInventoryItemsItemLocationLevelsReq {
 
 // eslint-disable-next-line
 export class AdminPostInventoryItemsItemLocationLevelsParams extends FindParams {}
+
+/**
+ * @schema AdminPostInventoryItemsReq
+ * type: object
+ * description: "The details of the inventory item to create."
+ * properties:
+ *   sku:
+ *     description: The unique SKU of the associated Product Variant.
+ *     type: string
+ *   ean:
+ *     description: The EAN number of the item.
+ *     type: string
+ *   upc:
+ *     description: The UPC number of the item.
+ *     type: string
+ *   barcode:
+ *     description: A generic GTIN field for the Product Variant.
+ *     type: string
+ *   hs_code:
+ *     description: The Harmonized System code of the Inventory Item. May be used by Fulfillment Providers to pass customs information to shipping carriers.
+ *     type: string
+ *   inventory_quantity:
+ *     description: The amount of stock kept of the associated Product Variant.
+ *     type: integer
+ *     default: 0
+ *   allow_backorder:
+ *     description: Whether the associated Product Variant can be purchased when out of stock.
+ *     type: boolean
+ *   manage_inventory:
+ *     description: Whether Medusa should keep track of the inventory for the associated Product Variant.
+ *     type: boolean
+ *     default: true
+ *   weight:
+ *     description: The weight of the Inventory Item. May be used in shipping rate calculations.
+ *     type: number
+ *   length:
+ *     description: The length of the Inventory Item. May be used in shipping rate calculations.
+ *     type: number
+ *   height:
+ *     description: The height of the Inventory Item. May be used in shipping rate calculations.
+ *     type: number
+ *   width:
+ *     description: The width of the Inventory Item. May be used in shipping rate calculations.
+ *     type: number
+ *   origin_country:
+ *     description: The country in which the Inventory Item was produced. May be used by Fulfillment Providers to pass customs information to shipping carriers.
+ *     type: string
+ *   mid_code:
+ *     description: The Manufacturers Identification code that identifies the manufacturer of the Inventory Item. May be used by Fulfillment Providers to pass customs information to shipping carriers.
+ *     type: string
+ *   material:
+ *     description: The material and composition that the Inventory Item is made of, May be used by Fulfillment Providers to pass customs information to shipping carriers.
+ *     type: string
+ *   title:
+ *     description: The inventory item's title.
+ *     type: string
+ *   description:
+ *     description: The inventory item's description.
+ *     type: string
+ *   thumbnail:
+ *     description: The inventory item's thumbnail.
+ *     type: string
+ *   metadata:
+ *     description: An optional set of key-value pairs with additional information.
+ *     type: object
+ *     externalDocs:
+ *       description: "Learn about the metadata attribute, and how to delete and update it."
+ *       url: "https://docs.medusajs.com/development/entities/overview#metadata-attribute"
+ */
+export class AdminPostInventoryItemsReq {
+  @IsString()
+  @IsOptional()
+  sku?: string
+
+  @IsString()
+  @IsOptional()
+  hs_code?: string
+
+  @IsNumber()
+  @IsOptional()
+  weight?: number
+
+  @IsNumber()
+  @IsOptional()
+  length?: number
+
+  @IsNumber()
+  @IsOptional()
+  height?: number
+
+  @IsNumber()
+  @IsOptional()
+  width?: number
+
+  @IsString()
+  @IsOptional()
+  origin_country?: string
+
+  @IsString()
+  @IsOptional()
+  mid_code?: string
+
+  @IsString()
+  @IsOptional()
+  material?: string
+
+  @IsString()
+  @IsOptional()
+  title?: string
+
+  @IsString()
+  @IsOptional()
+  description?: string
+
+  @IsString()
+  @IsOptional()
+  thumbnail?: string
+
+  @IsObject()
+  @IsOptional()
+  metadata?: Record<string, unknown>
+}