diff --git a/integration-tests/http/__tests__/fixtures/order.ts b/integration-tests/http/__tests__/fixtures/order.ts
index a57e454030..78ea700233 100644
--- a/integration-tests/http/__tests__/fixtures/order.ts
+++ b/integration-tests/http/__tests__/fixtures/order.ts
@@ -195,5 +195,18 @@ export async function createOrderSeeder({ api, container }) {
 
   order = (await api.get(`/admin/orders/${order.id}`, adminHeaders)).data.order
 
-  return order
+  return {
+    order,
+    region,
+    salesChannel,
+    stockLocation,
+    inventoryItem,
+    shippingProfile,
+    product,
+    fulfillmentSets,
+    fulfillmentSet,
+    shippingOption,
+    cart,
+    paymentCollection,
+  }
 }
diff --git a/integration-tests/http/__tests__/order/admin/order.spec.ts b/integration-tests/http/__tests__/order/admin/order.spec.ts
new file mode 100644
index 0000000000..3390f980aa
--- /dev/null
+++ b/integration-tests/http/__tests__/order/admin/order.spec.ts
@@ -0,0 +1,88 @@
+import { ModuleRegistrationName } from "@medusajs/utils"
+import { medusaIntegrationTestRunner } from "medusa-test-utils"
+import {
+  adminHeaders,
+  createAdminUser,
+} from "../../../../helpers/create-admin-user"
+import { setupTaxStructure } from "../../../../modules/__tests__/fixtures"
+import { createOrderSeeder } from "../../fixtures/order"
+
+jest.setTimeout(30000)
+
+medusaIntegrationTestRunner({
+  testSuite: ({ dbConnection, getContainer, api }) => {
+    let order, seeder
+
+    beforeEach(async () => {
+      const container = getContainer()
+
+      await setupTaxStructure(container.resolve(ModuleRegistrationName.TAX))
+      await createAdminUser(dbConnection, adminHeaders, container)
+      seeder = await createOrderSeeder({ api, container })
+      order = seeder.order
+      order = (await api.get(`/admin/orders/${order.id}`, adminHeaders)).data
+        .order
+    })
+
+    describe("POST /orders/:id/fulfillments/:id/mark-as-delivered", () => {
+      it("should mark fulfillable item as delivered", async () => {
+        let fulfillableItem = order.items.find(
+          (item) => item.detail.fulfilled_quantity < item.detail.quantity
+        )
+
+        await api.post(
+          `/admin/orders/${order.id}/fulfillments`,
+          {
+            location_id: seeder.stockLocation.id,
+            items: [
+              {
+                id: fulfillableItem.id,
+                quantity: 1,
+              },
+            ],
+          },
+          adminHeaders
+        )
+
+        order = (await api.get(`/admin/orders/${order.id}`, adminHeaders)).data
+          .order
+
+        expect(order.items[0].detail).toEqual(
+          expect.objectContaining({
+            fulfilled_quantity: 1,
+            delivered_quantity: 0,
+          })
+        )
+
+        await api.post(
+          `/admin/orders/${order.id}/fulfillments/${order.fulfillments[0].id}/mark-as-delivered`,
+          {},
+          adminHeaders
+        )
+
+        order = (await api.get(`/admin/orders/${order.id}`, adminHeaders)).data
+          .order
+
+        expect(order.items[0].detail).toEqual(
+          expect.objectContaining({
+            fulfilled_quantity: 1,
+            delivered_quantity: 1,
+          })
+        )
+
+        const { response } = await api
+          .post(
+            `/admin/orders/${order.id}/fulfillments/${order.fulfillments[0].id}/mark-as-delivered`,
+            {},
+            adminHeaders
+          )
+          .catch((e) => e)
+
+        expect(response.data).toEqual({
+          type: "not_allowed",
+          message: "Fulfillment has already been marked delivered",
+        })
+      })
+    })
+  },
+})
diff --git a/integration-tests/http/__tests__/order/admin/rma-flows.spec.ts b/integration-tests/http/__tests__/order/admin/rma-flows.spec.ts
index 32b16ca75f..8a946510b7 100644
--- a/integration-tests/http/__tests__/order/admin/rma-flows.spec.ts
+++ b/integration-tests/http/__tests__/order/admin/rma-flows.spec.ts
@@ -24,7 +24,8 @@ medusaIntegrationTestRunner({
 
       await setupTaxStructure(container.resolve(Modules.TAX))
       await createAdminUser(dbConnection, adminHeaders, container)
-      order = await createOrderSeeder({ api, container })
+      const seeders = await createOrderSeeder({ api, container })
+      order = seeders.order
 
       shippingProfile = (
         await api.post(
@@ -157,7 +158,7 @@ medusaIntegrationTestRunner({
     })
 
     describe("RMA Flows", () => {
-      it.only("should verify order summary at each level", async () => {
+      it("should verify order summary at each level", async () => {
         /* Case:
             Purchased:
               items: {
diff --git a/integration-tests/http/__tests__/payment/admin/payment.spec.ts b/integration-tests/http/__tests__/payment/admin/payment.spec.ts
index 1b3c93702b..6d412d098d 100644
--- a/integration-tests/http/__tests__/payment/admin/payment.spec.ts
+++ b/integration-tests/http/__tests__/payment/admin/payment.spec.ts
@@ -37,7 +37,8 @@ medusaIntegrationTestRunner({
     beforeEach(async () => {
       container = getContainer()
       await createAdminUser(dbConnection, adminHeaders, container)
-      order = await createOrderSeeder({ api, container })
+      const seeders = await createOrderSeeder({ api, container })
+      order = seeders.order
 
       await api.post(
         `/admin/orders/${order.id}/fulfillments`,
diff --git a/packages/admin/dashboard/src/hooks/api/orders.tsx b/packages/admin/dashboard/src/hooks/api/orders.tsx
index 0d1c2b6563..9dd92cef17 100644
--- a/packages/admin/dashboard/src/hooks/api/orders.tsx
+++ b/packages/admin/dashboard/src/hooks/api/orders.tsx
@@ -1,3 +1,5 @@
+import { FetchError } from "@medusajs/js-sdk"
+import { HttpTypes } from "@medusajs/types"
 import {
   QueryKey,
   useMutation,
@@ -5,8 +7,6 @@ import {
   useQuery,
   UseQueryOptions,
 } from "@tanstack/react-query"
-import { FetchError } from "@medusajs/js-sdk"
-import { HttpTypes } from "@medusajs/types"
 import { sdk } from "../../lib/client"
 import { queryClient } from "../../lib/query-client"
 import { queryKeysFactory, TQueryKey } from "../../lib/query-key-factory"
@@ -184,6 +184,33 @@ export const useCreateOrderShipment = (
   })
 }
 
+export const useMarkOrderFulfillmentAsDelivered = (
+  orderId: string,
+  fulfillmentId: string,
+  options?: UseMutationOptions<
+    { order: HttpTypes.AdminOrder },
+    FetchError,
+    HttpTypes.AdminMarkOrderFulfillmentAsDelivered
+  >
+) => {
+  return useMutation({
+    mutationFn: (payload: HttpTypes.AdminMarkOrderFulfillmentAsDelivered) =>
+      sdk.admin.order.markAsDelivered(orderId, fulfillmentId, payload),
+    onSuccess: (data: any, variables: any, context: any) => {
+      queryClient.invalidateQueries({
+        queryKey: ordersQueryKeys.all,
+      })
+
+      queryClient.invalidateQueries({
+        queryKey: ordersQueryKeys.preview(orderId),
+      })
+
+      options?.onSuccess?.(data, variables, context)
+    },
+    ...options,
+  })
+}
+
 export const useCancelOrder = (
   orderId: string,
   options?: UseMutationOptions<any, FetchError, any>
diff --git a/packages/admin/dashboard/src/i18n/translations/en.json b/packages/admin/dashboard/src/i18n/translations/en.json
index 1f1c96f302..3030c48a2e 100644
--- a/packages/admin/dashboard/src/i18n/translations/en.json
+++ b/packages/admin/dashboard/src/i18n/translations/en.json
@@ -1065,6 +1065,7 @@
     },
     "fulfillment": {
       "cancelWarning": "You are about to cancel a fulfillment. This action cannot be undone.",
+      "markAsDeliveredWarning": "You are about to mark fulfillment as delivered. This action cannot be undone.",
       "unfulfilledItems": "Unfulfilled Items",
       "statusLabel": "Fulfillment status",
       "statusTitle": "Fulfillment Status",
@@ -1076,6 +1077,7 @@
       "available": "Available",
       "inStock": "In stock",
       "markAsShipped": "Mark as shipped",
+      "markAsDelivered": "Mark as delivered",
       "itemsToFulfillDesc": "Choose items and quantities to fulfill",
       "locationDescription": "Choose which location you want to fulfill items from.",
       "sendNotificationHint": "Notify customers about the created fulfillment.",
@@ -1091,6 +1093,8 @@
         "fulfilled": "Fulfilled",
         "partiallyShipped": "Partially shipped",
         "shipped": "Shipped",
+        "delivered": "Delivered",
+        "partiallyDelivered": "Partially delivered",
         "partiallyReturned": "Partially returned",
         "returned": "Returned",
         "canceled": "Canceled",
@@ -1099,7 +1103,8 @@
       "toast": {
         "created": "Fulfillment created successfully",
         "canceled": "Fulfillment successfully canceled",
-        "fulfillmentShipped": "Cannot cancel an already shipped fulfillment"
+        "fulfillmentShipped": "Cannot cancel an already shipped fulfillment",
+        "fulfillmentDelivered": "Fulfillment marked as delivered successfully"
       },
       "trackingLabel": "Tracking",
       "shippingFromLabel": "Shipping from",
@@ -1155,6 +1160,7 @@
           "created": "Items fulfilled",
           "canceled": "Fulfillment canceled",
           "shipped": "Items shipped",
+          "delivered": "Items delivered",
           "items_one": "{{count}} item",
           "items_other": "{{count}} items"
         },
diff --git a/packages/admin/dashboard/src/lib/order-helpers.ts b/packages/admin/dashboard/src/lib/order-helpers.ts
index ca1118d70a..2ca088f0de 100644
--- a/packages/admin/dashboard/src/lib/order-helpers.ts
+++ b/packages/admin/dashboard/src/lib/order-helpers.ts
@@ -45,6 +45,11 @@ export const getOrderFulfillmentStatus = (
       "orange",
     ],
     shipped: [t("orders.fulfillment.status.shipped"), "green"],
+    delivered: [t("orders.fulfillment.status.delivered"), "green"],
+    partially_delivered: [
+      t("orders.fulfillment.status.partiallyDelivered"),
+      "orange",
+    ],
     partially_returned: [
       t("orders.fulfillment.status.partiallyReturned"),
       "orange",
diff --git a/packages/admin/dashboard/src/routes/orders/order-detail/components/order-activity-section/order-timeline.tsx b/packages/admin/dashboard/src/routes/orders/order-detail/components/order-activity-section/order-timeline.tsx
index e741b0d139..502091a814 100644
--- a/packages/admin/dashboard/src/routes/orders/order-detail/components/order-activity-section/order-timeline.tsx
+++ b/packages/admin/dashboard/src/routes/orders/order-detail/components/order-activity-section/order-timeline.tsx
@@ -16,6 +16,7 @@ import {
 import { useTranslation } from "react-i18next"
 
 import { AdminOrderLineItem } from "@medusajs/types"
+import { useOrderChanges } from "../../../../../hooks/api"
 import { useCancelClaim, useClaims } from "../../../../../hooks/api/claims"
 import {
   useCancelExchange,
@@ -25,7 +26,6 @@ import { useCancelReturn, useReturns } from "../../../../../hooks/api/returns"
 import { useDate } from "../../../../../hooks/use-date"
 import { getStylizedAmount } from "../../../../../lib/money-amount-helpers"
 import { getPaymentsFromOrder } from "../order-payment-section"
-import { useOrderChanges } from "../../../../../hooks/api"
 import ActivityItems from "./activity-items"
 
 type OrderTimelineProps = {
@@ -222,6 +222,16 @@ const useActivityItems = (order: AdminOrder): Activity[] => {
         children: <FulfillmentCreatedBody fulfillment={fulfillment} />,
       })
 
+      if (fulfillment.delivered_at) {
+        items.push({
+          title: t("orders.activity.events.fulfillment.delivered"),
+          timestamp: fulfillment.delivered_at,
+          children: (
+            <FulfillmentCreatedBody fulfillment={fulfillment} />
+          ),
+        })
+      }
+
       if (fulfillment.shipped_at) {
         items.push({
           title: t("orders.activity.events.fulfillment.shipped"),
@@ -340,10 +350,10 @@ const useActivityItems = (order: AdminOrder): Activity[] => {
           edit.status === "requested"
             ? edit.requested_at
             : edit.status === "declined"
-            ? edit.declined_at
-            : edit.status === "canceled"
-            ? edit.canceled_at
-            : edit.created_at,
+              ? edit.declined_at
+              : edit.status === "canceled"
+                ? edit.canceled_at
+                : edit.created_at,
         children: isConfirmed ? (
           <OrderEditBody edit={edit} itemsMap={itemsMap} />
         ) : null,
diff --git a/packages/admin/dashboard/src/routes/orders/order-detail/components/order-fulfillment-section/order-fulfillment-section.tsx b/packages/admin/dashboard/src/routes/orders/order-detail/components/order-fulfillment-section/order-fulfillment-section.tsx
index ef45e87b8c..b9a9c50769 100644
--- a/packages/admin/dashboard/src/routes/orders/order-detail/components/order-fulfillment-section/order-fulfillment-section.tsx
+++ b/packages/admin/dashboard/src/routes/orders/order-detail/components/order-fulfillment-section/order-fulfillment-section.tsx
@@ -22,7 +22,10 @@ import { Link, useNavigate } from "react-router-dom"
 import { ActionMenu } from "../../../../../components/common/action-menu"
 import { Skeleton } from "../../../../../components/common/skeleton"
 import { Thumbnail } from "../../../../../components/common/thumbnail"
-import { useCancelOrderFulfillment } from "../../../../../hooks/api/orders"
+import {
+  useCancelOrderFulfillment,
+  useMarkOrderFulfillmentAsDelivered,
+} from "../../../../../hooks/api/orders"
 import { useStockLocation } from "../../../../../hooks/api/stock-locations"
 import { formatProvider } from "../../../../../lib/format-provider"
 import { getLocaleAmount } from "../../../../../lib/money-amount-helpers"
@@ -183,6 +186,10 @@ const Fulfillment = ({
     statusText = "Canceled"
     statusColor = "red"
     statusTimestamp = fulfillment.canceled_at
+  } else if (fulfillment.delivered_at) {
+    statusText = "Delivered"
+    statusColor = "green"
+    statusTimestamp = fulfillment.delivered_at
   } else if (fulfillment.shipped_at) {
     statusText = "Shipped"
     statusColor = "green"
@@ -190,8 +197,41 @@ const Fulfillment = ({
   }
 
   const { mutateAsync } = useCancelOrderFulfillment(order.id, fulfillment.id)
+  const { mutateAsync: markAsDelivered } = useMarkOrderFulfillmentAsDelivered(
+    order.id,
+    fulfillment.id
+  )
 
-  const showShippingButton = !fulfillment.canceled_at && !fulfillment.shipped_at
+  const showShippingButton =
+    !fulfillment.canceled_at &&
+    !fulfillment.shipped_at &&
+    !fulfillment.delivered_at
+  const showDeliveryButton =
+    !fulfillment.canceled_at && !fulfillment.delivered_at
+
+  const handleMarkAsDelivered = async () => {
+    const res = await prompt({
+      title: t("general.areYouSure"),
+      description: t("orders.fulfillment.markAsDeliveredWarning"),
+      confirmText: t("actions.continue"),
+      cancelText: t("actions.cancel"),
+      variant: "confirmation",
+    })
+
+    if (res) {
+      await markAsDelivered(
+        {},
+        {
+          onSuccess: () => {
+            toast.success(t("orders.fulfillment.toast.fulfillmentDelivered"))
+          },
+          onError: (e) => {
+            toast.error(e.message)
+          },
+        }
+      )
+    }
+  }
 
   const handleCancel = async () => {
     if (fulfillment.shipped_at) {
@@ -343,14 +383,23 @@ const Fulfillment = ({
           )}
         </div>
       </div>
-      {showShippingButton && (
-        <div className="bg-ui-bg-subtle flex items-center justify-end rounded-b-xl px-4 py-4">
-          <Button
-            onClick={() => navigate(`./${fulfillment.id}/create-shipment`)}
-            variant="secondary"
-          >
-            {t("orders.fulfillment.markAsShipped")}
-          </Button>
+
+      {(showShippingButton || showDeliveryButton) && (
+        <div className="bg-ui-bg-subtle flex items-center justify-end rounded-b-xl px-4 py-4 gap-x-2">
+          {showDeliveryButton && (
+            <Button onClick={handleMarkAsDelivered} variant="secondary">
+              {t("orders.fulfillment.markAsDelivered")}
+            </Button>
+          )}
+
+          {showShippingButton && (
+            <Button
+              onClick={() => navigate(`./${fulfillment.id}/create-shipment`)}
+              variant="secondary"
+            >
+              {t("orders.fulfillment.markAsShipped")}
+            </Button>
+          )}
         </div>
       )}
     </Container>
diff --git a/packages/core/core-flows/src/fulfillment/steps/update-fulfillment.ts b/packages/core/core-flows/src/fulfillment/steps/update-fulfillment.ts
index 3e429878f4..2a58786931 100644
--- a/packages/core/core-flows/src/fulfillment/steps/update-fulfillment.ts
+++ b/packages/core/core-flows/src/fulfillment/steps/update-fulfillment.ts
@@ -13,6 +13,7 @@ export const updateFulfillmentStep = createStep(
     { container }
   ) => {
     const { id, ...data } = input
+
     const service = container.resolve<IFulfillmentModuleService>(
       Modules.FULFILLMENT
     )
diff --git a/packages/core/core-flows/src/fulfillment/workflows/index.ts b/packages/core/core-flows/src/fulfillment/workflows/index.ts
index 9340c1aca3..fd61409d1f 100644
--- a/packages/core/core-flows/src/fulfillment/workflows/index.ts
+++ b/packages/core/core-flows/src/fulfillment/workflows/index.ts
@@ -9,8 +9,8 @@ export * from "./create-shipping-profiles"
 export * from "./delete-fulfillment-sets"
 export * from "./delete-service-zones"
 export * from "./delete-shipping-options"
+export * from "./mark-fulfillment-as-delivered"
 export * from "./update-fulfillment"
 export * from "./update-service-zones"
 export * from "./update-shipping-options"
 export * from "./update-shipping-profiles"
-
diff --git a/packages/core/core-flows/src/fulfillment/workflows/mark-fulfillment-as-delivered.ts b/packages/core/core-flows/src/fulfillment/workflows/mark-fulfillment-as-delivered.ts
new file mode 100644
index 0000000000..24befb60c8
--- /dev/null
+++ b/packages/core/core-flows/src/fulfillment/workflows/mark-fulfillment-as-delivered.ts
@@ -0,0 +1,67 @@
+import { FulfillmentDTO } from "@medusajs/types"
+import { MedusaError } from "@medusajs/utils"
+import {
+  StepResponse,
+  WorkflowData,
+  WorkflowResponse,
+  createStep,
+  createWorkflow,
+  transform,
+} from "@medusajs/workflows-sdk"
+import { useRemoteQueryStep } from "../../common"
+import { updateFulfillmentWorkflow } from "./update-fulfillment"
+
+export const validateFulfillmentDeliverabilityStepId =
+  "validate-fulfillment-deliverability"
+/**
+ * This step validates that if a fulfillment can be marked delivered
+ */
+export const validateFulfillmentDeliverabilityStep = createStep(
+  validateFulfillmentDeliverabilityStepId,
+  async (fulfillment: FulfillmentDTO) => {
+    if (fulfillment.canceled_at) {
+      throw new MedusaError(
+        MedusaError.Types.NOT_ALLOWED,
+        "Cannot deliver an already canceled fulfillment"
+      )
+    }
+
+    if (fulfillment.delivered_at) {
+      throw new MedusaError(
+        MedusaError.Types.NOT_ALLOWED,
+        "Fulfillment has already been marked delivered"
+      )
+    }
+
+    return new StepResponse(void 0)
+  }
+)
+
+export const markFulfillmentAsDeliveredWorkflowId =
+  "mark-fulfillment-as-delivered-workflow"
+/**
+ * This workflow marks fulfillment as delivered.
+ */
+export const markFulfillmentAsDeliveredWorkflow = createWorkflow(
+  markFulfillmentAsDeliveredWorkflowId,
+  ({ id }: WorkflowData<{ id: string }>) => {
+    const fulfillment = useRemoteQueryStep({
+      entry_point: "fulfillment",
+      fields: ["id", "delivered_at", "canceled_at"],
+      variables: { id },
+      throw_if_key_not_found: true,
+      list: false,
+    })
+
+    validateFulfillmentDeliverabilityStep(fulfillment)
+
+    const updateInput = transform({ id }, ({ id }) => ({
+      id,
+      delivered_at: new Date(),
+    }))
+
+    return new WorkflowResponse(
+      updateFulfillmentWorkflow.runAsStep({ input: updateInput })
+    )
+  }
+)
diff --git a/packages/core/core-flows/src/order/steps/register-delivery.ts b/packages/core/core-flows/src/order/steps/register-delivery.ts
new file mode 100644
index 0000000000..527b36a53d
--- /dev/null
+++ b/packages/core/core-flows/src/order/steps/register-delivery.ts
@@ -0,0 +1,31 @@
+import { IOrderModuleService, RegisterOrderDeliveryDTO } from "@medusajs/types"
+import { ModuleRegistrationName } from "@medusajs/utils"
+import { StepResponse, createStep } from "@medusajs/workflows-sdk"
+
+export const registerOrderDeliveryStepId = "register-order-delivery"
+/**
+ * This step registers a delivery for an order fulfillment.
+ */
+export const registerOrderDeliveryStep = createStep(
+  registerOrderDeliveryStepId,
+  async (data: RegisterOrderDeliveryDTO, { container }) => {
+    const service = container.resolve<IOrderModuleService>(
+      ModuleRegistrationName.ORDER
+    )
+
+    await service.registerDelivery(data)
+
+    return new StepResponse(void 0, data.order_id)
+  },
+  async (orderId, { container }) => {
+    if (!orderId) {
+      return
+    }
+
+    const service = container.resolve<IOrderModuleService>(
+      ModuleRegistrationName.ORDER
+    )
+
+    await service.revertLastVersion(orderId)
+  }
+)
diff --git a/packages/core/core-flows/src/order/workflows/index.ts b/packages/core/core-flows/src/order/workflows/index.ts
index 77fab019e3..f4eefc28ae 100644
--- a/packages/core/core-flows/src/order/workflows/index.ts
+++ b/packages/core/core-flows/src/order/workflows/index.ts
@@ -41,6 +41,7 @@ export * from "./exchange/update-exchange-add-item"
 export * from "./exchange/update-exchange-shipping-method"
 export * from "./get-order-detail"
 export * from "./get-orders-list"
+export * from "./mark-order-fulfillment-as-delivered"
 export * from "./mark-payment-collection-as-paid"
 export * from "./order-edit/begin-order-edit"
 export * from "./order-edit/cancel-begin-order-edit"
diff --git a/packages/core/core-flows/src/order/workflows/mark-order-fulfillment-as-delivered.ts b/packages/core/core-flows/src/order/workflows/mark-order-fulfillment-as-delivered.ts
new file mode 100644
index 0000000000..b841e34798
--- /dev/null
+++ b/packages/core/core-flows/src/order/workflows/mark-order-fulfillment-as-delivered.ts
@@ -0,0 +1,140 @@
+import {
+  FulfillmentDTO,
+  OrderDTO,
+  RegisterOrderDeliveryDTO,
+} from "@medusajs/types"
+import { FulfillmentEvents, Modules } from "@medusajs/utils"
+import {
+  WorkflowData,
+  WorkflowResponse,
+  createStep,
+  createWorkflow,
+  parallelize,
+  transform,
+} from "@medusajs/workflows-sdk"
+import { emitEventStep, useRemoteQueryStep } from "../../common"
+import { markFulfillmentAsDeliveredWorkflow } from "../../fulfillment"
+import { registerOrderDeliveryStep } from "../steps/register-delivery"
+import {
+  throwIfItemsDoesNotExistsInOrder,
+  throwIfOrderIsCancelled,
+} from "../utils/order-validation"
+
+export const orderFulfillmentDeliverablilityValidationStepId =
+  "order-fulfillment-deliverability-validation"
+/**
+ * This step validates that order & fulfillment are valid
+ */
+export const orderFulfillmentDeliverablilityValidationStep = createStep(
+  orderFulfillmentDeliverablilityValidationStepId,
+  async ({
+    fulfillment,
+    order,
+  }: {
+    order: OrderDTO & { fulfillments: FulfillmentDTO[] }
+    fulfillment: FulfillmentDTO
+  }) => {
+    throwIfOrderIsCancelled({ order })
+
+    const orderFulfillment = order.fulfillments?.find(
+      (f) => f.id === fulfillment.id
+    )
+
+    if (!orderFulfillment) {
+      throw new Error(
+        `Fulfillment with id ${fulfillment.id} not found in the order`
+      )
+    }
+
+    throwIfItemsDoesNotExistsInOrder({
+      order,
+      inputItems: order.items!.map((i) => ({
+        id: i.id,
+        quantity: i.quantity,
+      })),
+    })
+  }
+)
+
+function prepareRegisterDeliveryData({
+  fulfillment,
+  order,
+}: {
+  fulfillment: FulfillmentDTO
+  order: OrderDTO & { fulfillments: FulfillmentDTO[] }
+}): RegisterOrderDeliveryDTO {
+  const orderFulfillment = order.fulfillments.find(
+    (f) => f.id === fulfillment.id
+  )!
+
+  return {
+    order_id: order.id,
+    reference: Modules.FULFILLMENT,
+    reference_id: orderFulfillment.id,
+    items: orderFulfillment.items!.map((i) => {
+      return {
+        id: i.line_item_id!,
+        quantity: i.quantity!,
+      }
+    }),
+  }
+}
+
+export const markOrderFulfillmentAsDeliveredWorkflowId =
+  "mark-order-fulfillment-as-delivered-workflow"
+/**
+ * This workflow marks a fulfillment in an order as delivered.
+ */
+export const markOrderFulfillmentAsDeliveredWorkflow = createWorkflow(
+  markOrderFulfillmentAsDeliveredWorkflowId,
+  (input: WorkflowData<{ orderId: string; fulfillmentId: string }>) => {
+    const { fulfillmentId, orderId } = input
+    const fulfillment = useRemoteQueryStep({
+      entry_point: "fulfillment",
+      fields: ["id"],
+      variables: { id: fulfillmentId },
+      throw_if_key_not_found: true,
+      list: false,
+    })
+
+    const order = useRemoteQueryStep({
+      entry_point: "order",
+      fields: [
+        "id",
+        "summary",
+        "currency_code",
+        "region_id",
+        "fulfillments.id",
+        "fulfillments.items.id",
+        "fulfillments.items.quantity",
+        "fulfillments.items.line_item_id",
+        "items.id",
+        "items.quantity",
+      ],
+      variables: { id: orderId },
+      throw_if_key_not_found: true,
+      list: false,
+    }).config({ name: "order-query" })
+
+    orderFulfillmentDeliverablilityValidationStep({ order, fulfillment })
+
+    const deliveryData = transform(
+      { order, fulfillment },
+      prepareRegisterDeliveryData
+    )
+
+    const [deliveredFulfillment] = parallelize(
+      markFulfillmentAsDeliveredWorkflow.runAsStep({
+        input: { id: fulfillment.id },
+      }),
+      registerOrderDeliveryStep(deliveryData)
+    )
+
+    emitEventStep({
+      eventName: FulfillmentEvents.DELIVERY_CREATED,
+      data: { id: deliveredFulfillment.id },
+    })
+
+    return new WorkflowResponse(void 0)
+  }
+)
diff --git a/packages/core/js-sdk/src/admin/order.ts b/packages/core/js-sdk/src/admin/order.ts
index 7340871416..8f3286fec2 100644
--- a/packages/core/js-sdk/src/admin/order.ts
+++ b/packages/core/js-sdk/src/admin/order.ts
@@ -112,6 +112,24 @@ export class Order {
     )
   }
 
+  async markAsDelivered(
+    id: string,
+    fulfillmentId: string,
+    body: HttpTypes.AdminMarkOrderFulfillmentAsDelivered,
+    query?: SelectParams,
+    headers?: ClientHeaders
+  ) {
+    return await this.client.fetch<{ order: HttpTypes.AdminOrder }>(
+      `/admin/orders/${id}/fulfillments/${fulfillmentId}/mark-as-delivered`,
+      {
+        method: "POST",
+        headers,
+        body,
+        query,
+      }
+    )
+  }
+
   async listChanges(
     id: string,
     queryParams?: FindParams & HttpTypes.AdminOrderChangesFilters,
diff --git a/packages/core/types/src/http/order/admin/payload.ts b/packages/core/types/src/http/order/admin/payload.ts
index d044b5d1c3..3ce1d41cb9 100644
--- a/packages/core/types/src/http/order/admin/payload.ts
+++ b/packages/core/types/src/http/order/admin/payload.ts
@@ -19,3 +19,5 @@ export interface AdminCreateOrderShipment {
 export interface AdminCancelOrderFulfillment {
   no_notification?: boolean
 }
+
+export interface AdminMarkOrderFulfillmentAsDelivered {}
diff --git a/packages/core/types/src/http/order/common.ts b/packages/core/types/src/http/order/common.ts
index 498b4c4b7b..161f36b710 100644
--- a/packages/core/types/src/http/order/common.ts
+++ b/packages/core/types/src/http/order/common.ts
@@ -165,6 +165,7 @@ export interface BaseOrderItemDetail {
   item: BaseOrderLineItem
   quantity: number
   fulfilled_quantity: number
+  delivered_quantity: number
   shipped_quantity: number
   return_requested_quantity: number
   return_received_quantity: number
diff --git a/packages/core/types/src/order/common.ts b/packages/core/types/src/order/common.ts
index e07730425d..17af49c3a6 100644
--- a/packages/core/types/src/order/common.ts
+++ b/packages/core/types/src/order/common.ts
@@ -11,6 +11,7 @@ import { ClaimReason } from "./mutations"
 export type ChangeActionType =
   | "CANCEL_RETURN_ITEM"
   | "FULFILL_ITEM"
+  | "DELIVER_ITEM"
   | "CANCEL_ITEM_FULFILLMENT"
   | "ITEM_ADD"
   | "ITEM_REMOVE"
@@ -899,6 +900,16 @@ export interface OrderItemDTO {
    */
   raw_fulfilled_quantity: BigNumberRawValue
 
+  /**
+   * The delivered quantity of the order line item.
+   */
+  delivered_quantity: number
+
+  /**
+   * The raw delivered quantity of the order line item.
+   */
+  raw_delivered_quantity: BigNumberRawValue
+
   /**
    * The shipped quantity of the order line item.
    */
diff --git a/packages/core/types/src/order/mutations.ts b/packages/core/types/src/order/mutations.ts
index bf2f40da20..0308e3ec50 100644
--- a/packages/core/types/src/order/mutations.ts
+++ b/packages/core/types/src/order/mutations.ts
@@ -1468,6 +1468,22 @@ export interface RegisterOrderShipmentDTO extends BaseOrderBundledActionsDTO {
   no_notification?: boolean
 }
 
+/**
+ * The details to register a delivery of an order, return, exchange,
+ * or claim.
+ */
+export interface RegisterOrderDeliveryDTO extends BaseOrderBundledActionsDTO {
+  /**
+   * The items of the delivery.
+   */
+  items?: BaseOrderBundledItemActionsDTO[]
+
+  /**
+   * Whether the customer should receive notifications about the delivery.
+   */
+  no_notification?: boolean
+}
+
 /**
  * The return to be created.
  */
diff --git a/packages/core/types/src/order/service.ts b/packages/core/types/src/order/service.ts
index 63725a2f39..99a00d8757 100644
--- a/packages/core/types/src/order/service.ts
+++ b/packages/core/types/src/order/service.ts
@@ -67,6 +67,7 @@ import {
   CreateOrderTransactionDTO,
   DeclineOrderChangeDTO,
   ReceiveOrderReturnDTO,
+  RegisterOrderDeliveryDTO,
   RegisterOrderFulfillmentDTO,
   RegisterOrderShipmentDTO,
   UpdateOrderAddressDTO,
@@ -4591,6 +4592,29 @@ export interface IOrderModuleService extends IModuleService {
     sharedContext?: Context
   ): Promise<void>
 
+  /**
+   * This method registers a delivery for an order's fulfillment
+   *
+   * @param {RegisterOrderDeliveryDTO} data - The ordes's delivery data.
+   * @param {Context} sharedContext - A context used to share resources, such as transaction manager, between the application and the module.
+   * @returns {Promise<void>} Resolves when the delivery is registered successfully.
+   *
+   * @example
+   * await orderModuleService.registerDelivery({
+   *   order_id: "123",
+   *   items: [
+   *     {
+   *       id: "321",
+   *       quantity: 1
+   *     }
+   *   ]
+   * })
+   */
+  registerDelivery(
+    data: RegisterOrderDeliveryDTO,
+    sharedContext?: Context
+  ): Promise<void>
+
   /**
    * This method creates a return.
    *
diff --git a/packages/core/types/src/workflow/order/create-shipment.ts b/packages/core/types/src/workflow/order/create-shipment.ts
index 024e107489..966deb04f8 100644
--- a/packages/core/types/src/workflow/order/create-shipment.ts
+++ b/packages/core/types/src/workflow/order/create-shipment.ts
@@ -16,3 +16,13 @@ export interface CreateOrderShipmentWorkflowInput {
   no_notification?: boolean
   metadata?: MetadataType
 }
+
+interface CreateOrderDeliveryItem {
+  id: string
+  quantity: BigNumberInput
+}
+
+export interface CreateOrderDeliveryWorkflowInput {
+  order_id: string
+  fulfillment_id: string
+}
diff --git a/packages/core/utils/src/fulfillment/events.ts b/packages/core/utils/src/fulfillment/events.ts
index 1f85fbee16..f4e61b3618 100644
--- a/packages/core/utils/src/fulfillment/events.ts
+++ b/packages/core/utils/src/fulfillment/events.ts
@@ -30,4 +30,5 @@ const eventBaseNames: [
 export const FulfillmentEvents = {
   ...buildEventNamesFromEntityName(eventBaseNames, Modules.FULFILLMENT),
   SHIPMENT_CREATED: "shipment.created",
+  DELIVERY_CREATED: "delivery.created",
 }
diff --git a/packages/core/utils/src/order/order-change-action.ts b/packages/core/utils/src/order/order-change-action.ts
index 006e70e468..57f43347a1 100644
--- a/packages/core/utils/src/order/order-change-action.ts
+++ b/packages/core/utils/src/order/order-change-action.ts
@@ -1,5 +1,6 @@
 export enum ChangeActionType {
   FULFILL_ITEM = "FULFILL_ITEM",
+  DELIVER_ITEM = "DELIVER_ITEM",
   CANCEL_ITEM_FULFILLMENT = "CANCEL_ITEM_FULFILLMENT",
   ITEM_ADD = "ITEM_ADD",
   ITEM_REMOVE = "ITEM_REMOVE",
diff --git a/packages/core/utils/src/totals/line-item/index.ts b/packages/core/utils/src/totals/line-item/index.ts
index 6dbdab899a..dbe97099e5 100644
--- a/packages/core/utils/src/totals/line-item/index.ts
+++ b/packages/core/utils/src/totals/line-item/index.ts
@@ -19,6 +19,7 @@ export interface GetItemTotalInput {
   adjustments?: Pick<AdjustmentLineDTO, "amount">[]
   detail?: {
     fulfilled_quantity: BigNumber
+    delivered_quantity: BigNumber
     shipped_quantity: BigNumber
     return_requested_quantity: BigNumber
     return_received_quantity: BigNumber
diff --git a/packages/medusa/src/api/admin/orders/[id]/fulfillments/[fulfillment_id]/mark-as-delivered/route.ts b/packages/medusa/src/api/admin/orders/[id]/fulfillments/[fulfillment_id]/mark-as-delivered/route.ts
new file mode 100644
index 0000000000..38775f1648
--- /dev/null
+++ b/packages/medusa/src/api/admin/orders/[id]/fulfillments/[fulfillment_id]/mark-as-delivered/route.ts
@@ -0,0 +1,28 @@
+import { markOrderFulfillmentAsDeliveredWorkflow } from "@medusajs/core-flows"
+import { HttpTypes } from "@medusajs/types"
+import {
+  AuthenticatedMedusaRequest,
+  MedusaResponse,
+} from "../../../../../../../types/routing"
+import { refetchEntity } from "../../../../../../utils/refetch-entity"
+import { AdminMarkOrderFulfillmentDeliveredType } from "../../../../validators"
+
+export const POST = async (
+  req: AuthenticatedMedusaRequest<AdminMarkOrderFulfillmentDeliveredType>,
+  res: MedusaResponse<HttpTypes.AdminOrderResponse>
+) => {
+  const { id: orderId, fulfillment_id: fulfillmentId } = req.params
+
+  await markOrderFulfillmentAsDeliveredWorkflow(req.scope).run({
+    input: { orderId, fulfillmentId },
+  })
+
+  const order = await refetchEntity(
+    "order",
+    orderId,
+    req.scope,
+    req.remoteQueryConfig.fields
+  )
+
+  res.status(200).json({ order })
+}
diff --git a/packages/medusa/src/api/admin/orders/middlewares.ts b/packages/medusa/src/api/admin/orders/middlewares.ts
index e9c52c2b12..8516de3a82 100644
--- a/packages/medusa/src/api/admin/orders/middlewares.ts
+++ b/packages/medusa/src/api/admin/orders/middlewares.ts
@@ -6,6 +6,7 @@ import {
   AdminCompleteOrder,
   AdminGetOrdersOrderParams,
   AdminGetOrdersParams,
+  AdminMarkOrderFulfillmentDelivered,
   AdminOrderCancelFulfillment,
   AdminOrderChanges,
   AdminOrderCreateFulfillment,
@@ -119,4 +120,15 @@ export const adminOrderRoutesMiddlewares: MiddlewareRoute[] = [
       ),
     ],
   },
+  {
+    method: ["POST"],
+    matcher: "/admin/orders/:id/fulfillments/:fulfillment_id/mark-as-delivered",
+    middlewares: [
+      validateAndTransformBody(AdminMarkOrderFulfillmentDelivered),
+      validateAndTransformQuery(
+        AdminGetOrdersOrderParams,
+        QueryConfig.retrieveTransformQueryConfig
+      ),
+    ],
+  },
 ]
diff --git a/packages/medusa/src/api/admin/orders/validators.ts b/packages/medusa/src/api/admin/orders/validators.ts
index 9f466bf47c..0f8e3ccfe7 100644
--- a/packages/medusa/src/api/admin/orders/validators.ts
+++ b/packages/medusa/src/api/admin/orders/validators.ts
@@ -101,3 +101,8 @@ export const AdminOrderChanges = z.object({
   deleted_at: createOperatorMap().optional(),
 })
 export type AdminOrderChangesType = z.infer<typeof AdminOrderChanges>
+
+export type AdminMarkOrderFulfillmentDeliveredType = z.infer<
+  typeof AdminMarkOrderFulfillmentDelivered
+>
+export const AdminMarkOrderFulfillmentDelivered = z.object({})
diff --git a/packages/modules/inventory-next/src/services/inventory-module.ts b/packages/modules/inventory-next/src/services/inventory-module.ts
index adce53b266..7a56e6c013 100644
--- a/packages/modules/inventory-next/src/services/inventory-module.ts
+++ b/packages/modules/inventory-next/src/services/inventory-module.ts
@@ -1043,7 +1043,7 @@ export default class InventoryModuleService
     locationId: string,
     @MedusaContext() context: Context = {}
   ): Promise<InventoryTypes.InventoryLevelDTO> {
-    const inventoryLevel = await this.listInventoryLevels(
+    const [inventoryLevel] = await this.listInventoryLevels(
       { inventory_item_id: inventoryItemId, location_id: locationId },
       { take: null },
       context
@@ -1056,7 +1056,7 @@ export default class InventoryModuleService
       )
     }
 
-    return inventoryLevel[0]
+    return inventoryLevel
   }
 
   /**
diff --git a/packages/modules/order/integration-tests/__tests__/order-edit.ts b/packages/modules/order/integration-tests/__tests__/order-edit.ts
index 1366c953d2..663aa6d559 100644
--- a/packages/modules/order/integration-tests/__tests__/order-edit.ts
+++ b/packages/modules/order/integration-tests/__tests__/order-edit.ts
@@ -397,6 +397,13 @@ moduleIntegrationTestRunner<IOrderModuleService>({
                 quantity: 4,
               },
             },
+            {
+              action: ChangeActionType.DELIVER_ITEM,
+              details: {
+                reference_id: createdOrder.items![1].id,
+                quantity: 1,
+              },
+            },
           ],
         })
 
@@ -421,6 +428,7 @@ moduleIntegrationTestRunner<IOrderModuleService>({
           expect.objectContaining({
             quantity: 4,
             fulfilled_quantity: 1,
+            delivered_quantity: 1,
           })
         )
 
@@ -499,6 +507,30 @@ moduleIntegrationTestRunner<IOrderModuleService>({
             fulfilled_quantity: 2,
           })
         )
+
+        const orderChange5 = await service.createOrderChange({
+          order_id: createdOrder.id,
+          actions: [
+            {
+              action: ChangeActionType.DELIVER_ITEM,
+              details: {
+                reference_id: createdOrder.items![1].id,
+                quantity: 5,
+              },
+            },
+          ],
+        })
+
+        await expect(
+          service.confirmOrderChange({
+            id: orderChange5.id,
+          })
+        ).rejects.toThrow(
+          `Cannot deliver more items than what was fulfilled for item ${
+            createdOrder.items![1].id
+          }`
+        )
+        await service.deleteOrderChanges([orderChange5.id])
       })
 
       it("should create an order change, add actions to it, confirm the changes, revert all the changes and restore the changes again.", async function () {
diff --git a/packages/modules/order/src/migrations/.snapshot-medusa-order.json b/packages/modules/order/src/migrations/.snapshot-medusa-order.json
index c9eec4b51c..0aa7c0dccc 100644
--- a/packages/modules/order/src/migrations/.snapshot-medusa-order.json
+++ b/packages/modules/order/src/migrations/.snapshot-medusa-order.json
@@ -869,6 +869,25 @@
           "nullable": false,
           "mappedType": "json"
         },
+        "delivered_quantity": {
+          "name": "delivered_quantity",
+          "type": "numeric",
+          "unsigned": false,
+          "autoincrement": false,
+          "primary": false,
+          "nullable": false,
+          "default": "0",
+          "mappedType": "decimal"
+        },
+        "raw_delivered_quantity": {
+          "name": "raw_delivered_quantity",
+          "type": "jsonb",
+          "unsigned": false,
+          "autoincrement": false,
+          "primary": false,
+          "nullable": false,
+          "mappedType": "json"
+        },
         "shipped_quantity": {
           "name": "shipped_quantity",
           "type": "numeric",
diff --git a/packages/modules/order/src/migrations/Migration20240913092514.ts b/packages/modules/order/src/migrations/Migration20240913092514.ts
new file mode 100644
index 0000000000..c661500b51
--- /dev/null
+++ b/packages/modules/order/src/migrations/Migration20240913092514.ts
@@ -0,0 +1,26 @@
+import { Migration } from "@mikro-orm/migrations"
+
+export class Migration20240913092514 extends Migration {
+  async up(): Promise<void> {
+    this.addSql(
+      'alter table if exists "order_item" add column if not exists "delivered_quantity" numeric not null default 0, add column if not exists "raw_delivered_quantity" jsonb;'
+    )
+
+    this.addSql(
+      `UPDATE "order_item" SET raw_delivered_quantity = '{"value": "0", "precision": 20}'::jsonb;`
+    )
+
+    this.addSql(
+      'ALTER TABLE IF EXISTS "order_item" ALTER COLUMN "raw_delivered_quantity" SET NOT NULL;'
+    )
+  }
+
+  async down(): Promise<void> {
+    this.addSql(
+      'alter table if exists "order_item" drop column if exists "delivered_quantity";'
+    )
+    this.addSql(
+      'alter table if exists "order_item" drop column if exists "raw_delivered_quantity";'
+    )
+  }
+}
diff --git a/packages/modules/order/src/models/order-item.ts b/packages/modules/order/src/models/order-item.ts
index 98009db9b2..778b180453 100644
--- a/packages/modules/order/src/models/order-item.ts
+++ b/packages/modules/order/src/models/order-item.ts
@@ -96,6 +96,12 @@ export default class OrderItem {
   @Property({ columnType: "jsonb" })
   raw_fulfilled_quantity: BigNumberRawValue
 
+  @MikroOrmBigNumberProperty()
+  delivered_quantity: BigNumber | number = 0
+
+  @Property({ columnType: "jsonb" })
+  raw_delivered_quantity: BigNumberRawValue
+
   @MikroOrmBigNumberProperty()
   shipped_quantity: BigNumber | number = 0
 
diff --git a/packages/modules/order/src/services/actions/index.ts b/packages/modules/order/src/services/actions/index.ts
index b721ab9cf6..6c1526da4b 100644
--- a/packages/modules/order/src/services/actions/index.ts
+++ b/packages/modules/order/src/services/actions/index.ts
@@ -6,5 +6,6 @@ export * from "./create-claim"
 export * from "./create-exchange"
 export * from "./create-return"
 export * from "./receive-return"
+export * from "./register-delivery"
 export * from "./register-fulfillment"
 export * from "./register-shipment"
diff --git a/packages/modules/order/src/services/actions/register-delivery.ts b/packages/modules/order/src/services/actions/register-delivery.ts
new file mode 100644
index 0000000000..3c2d06a06e
--- /dev/null
+++ b/packages/modules/order/src/services/actions/register-delivery.ts
@@ -0,0 +1,36 @@
+import { Context, OrderTypes } from "@medusajs/types"
+import { ChangeActionType } from "@medusajs/utils"
+
+export async function registerDelivery(
+  this: any,
+  data: OrderTypes.RegisterOrderDeliveryDTO,
+  sharedContext?: Context
+): Promise<void> {
+  const items = data.items?.map((item) => {
+    return {
+      action: ChangeActionType.DELIVER_ITEM,
+      internal_note: item.internal_note,
+      reference: data.reference,
+      reference_id: data.reference_id,
+      details: {
+        reference_id: item.id,
+        quantity: item.quantity,
+        metadata: item.metadata,
+      },
+    }
+  })
+
+  const change = await this.createOrderChange_(
+    {
+      order_id: data.order_id,
+      description: data.description,
+      internal_note: data.internal_note,
+      created_by: data.created_by,
+      metadata: data.metadata,
+      actions: items,
+    },
+    sharedContext
+  )
+
+  await this.confirmOrderChange(change[0].id, sharedContext)
+}
diff --git a/packages/modules/order/src/services/order-module-service.ts b/packages/modules/order/src/services/order-module-service.ts
index 6e5b62b9ab..530a8eadca 100644
--- a/packages/modules/order/src/services/order-module-service.ts
+++ b/packages/modules/order/src/services/order-module-service.ts
@@ -3295,4 +3295,12 @@ export default class OrderModuleService<
   ): Promise<void> {
     return await BundledActions.registerShipment.bind(this)(data, sharedContext)
   }
+
+  @InjectTransactionManager("baseRepository_")
+  async registerDelivery(
+    data: OrderTypes.RegisterOrderDeliveryDTO,
+    @MedusaContext() sharedContext?: Context
+  ): Promise<void> {
+    return await BundledActions.registerDelivery.bind(this)(data, sharedContext)
+  }
 }
diff --git a/packages/modules/order/src/types/utils/index.ts b/packages/modules/order/src/types/utils/index.ts
index 7b82fccb9a..50e26a3b4b 100644
--- a/packages/modules/order/src/types/utils/index.ts
+++ b/packages/modules/order/src/types/utils/index.ts
@@ -24,6 +24,7 @@ export type VirtualOrder = {
       quantity: BigNumberInput
       shipped_quantity: BigNumberInput
       fulfilled_quantity: BigNumberInput
+      delivered_quantity: BigNumberInput
       return_requested_quantity: BigNumberInput
       return_received_quantity: BigNumberInput
       return_dismissed_quantity: BigNumberInput
diff --git a/packages/modules/order/src/utils/actions/deliver-item.ts b/packages/modules/order/src/utils/actions/deliver-item.ts
new file mode 100644
index 0000000000..53469dea5e
--- /dev/null
+++ b/packages/modules/order/src/utils/actions/deliver-item.ts
@@ -0,0 +1,67 @@
+import { ChangeActionType, MathBN, MedusaError } from "@medusajs/utils"
+import { OrderChangeProcessing } from "../calculate-order-change"
+import { setActionReference } from "../set-action-reference"
+
+OrderChangeProcessing.registerActionType(ChangeActionType.DELIVER_ITEM, {
+  operation({ action, currentOrder, options }) {
+    const item = currentOrder.items.find(
+      (item) => item.id === action.details.reference_id
+    )!
+
+    item.detail.delivered_quantity ??= 0
+
+    item.detail.delivered_quantity = MathBN.add(
+      item.detail.delivered_quantity,
+      action.details.quantity
+    )
+
+    setActionReference(item, action, options)
+  },
+  validate({ action, currentOrder }) {
+    const refId = action.details?.reference_id
+
+    if (refId == null) {
+      throw new MedusaError(
+        MedusaError.Types.INVALID_DATA,
+        "Reference ID is required."
+      )
+    }
+
+    const item = currentOrder.items.find((item) => item.id === refId)
+
+    if (!item) {
+      throw new MedusaError(
+        MedusaError.Types.INVALID_DATA,
+        `Item ID "${refId}" not found.`
+      )
+    }
+
+    const totalDeliverable = MathBN.convert(item.quantity)
+    const totalDelivered = MathBN.convert(item.detail?.delivered_quantity)
+    const newDelivered = MathBN.convert(action.details?.quantity ?? 0)
+    const newTotalDelivered = MathBN.sum(totalDelivered, newDelivered)
+
+    const totalFulfilled = MathBN.convert(item.detail?.fulfilled_quantity)
+
+    if (MathBN.lte(newDelivered, 0)) {
+      throw new MedusaError(
+        MedusaError.Types.INVALID_DATA,
+        `Quantity of item ${refId} must be greater than 0.`
+      )
+    }
+
+    if (MathBN.gt(newTotalDelivered, totalFulfilled)) {
+      throw new MedusaError(
+        MedusaError.Types.INVALID_DATA,
+        `Cannot deliver more items than what was fulfilled for item ${refId}.`
+      )
+    }
+
+    if (MathBN.gt(newTotalDelivered, totalDeliverable)) {
+      throw new MedusaError(
+        MedusaError.Types.INVALID_DATA,
+        `Cannot deliver more items than what was ordered for item ${refId}.`
+      )
+    }
+  },
+})
diff --git a/packages/modules/order/src/utils/actions/index.ts b/packages/modules/order/src/utils/actions/index.ts
index fe1ea6d71d..39b127cb6e 100644
--- a/packages/modules/order/src/utils/actions/index.ts
+++ b/packages/modules/order/src/utils/actions/index.ts
@@ -1,5 +1,6 @@
 export * from "./cancel-item-fulfillment"
 export * from "./cancel-return"
+export * from "./deliver-item"
 export * from "./fulfill-item"
 export * from "./item-add"
 export * from "./item-remove"
diff --git a/packages/modules/order/src/utils/apply-order-changes.ts b/packages/modules/order/src/utils/apply-order-changes.ts
index da6f862c39..0899d91c37 100644
--- a/packages/modules/order/src/utils/apply-order-changes.ts
+++ b/packages/modules/order/src/utils/apply-order-changes.ts
@@ -58,6 +58,7 @@ export function applyChangesToOrder(
         version,
         quantity: orderItem.quantity,
         fulfilled_quantity: orderItem.fulfilled_quantity ?? 0,
+        delivered_quantity: orderItem.delivered_quantity ?? 0,
         shipped_quantity: orderItem.shipped_quantity ?? 0,
         return_requested_quantity: orderItem.return_requested_quantity ?? 0,
         return_received_quantity: orderItem.return_received_quantity ?? 0,
diff --git a/packages/modules/order/src/utils/calculate-order-change.ts b/packages/modules/order/src/utils/calculate-order-change.ts
index 8dd3b36cc7..7c41890ad5 100644
--- a/packages/modules/order/src/utils/calculate-order-change.ts
+++ b/packages/modules/order/src/utils/calculate-order-change.ts
@@ -148,6 +148,7 @@ export class OrderChangeProcessing {
     isReplay = false
   ): BigNumberInput | void {
     const definedType = OrderChangeProcessing.typeDefinition[action.action]
+
     if (!isPresent(definedType)) {
       throw new Error(`Action type ${action.action} is not defined`)
     }