diff --git a/docs-util/typedoc-json-output/fulfillment.json b/docs-util/typedoc-json-output/fulfillment.json
index 3615b435ac..62d88cc5d4 100644
--- a/docs-util/typedoc-json-output/fulfillment.json
+++ b/docs-util/typedoc-json-output/fulfillment.json
@@ -998,7 +998,7 @@
 											},
 											{
 												"kind": "code",
-												"text": "```ts\nclass MyFulfillmentService extends AbstractFulfillmentService {\n  // ...\n  async createFulfillment(\n    data: Record<string, unknown>,\n    items: LineItem,\n    order: Order,\n    fulfillment: Fulfillment\n  ) {\n    // No data is being sent anywhere\n    // No data to be stored in the fulfillment's data object\n    return {}\n  }\n}\n```"
+												"text": "```ts\nclass MyFulfillmentService extends AbstractFulfillmentService {\n  // ...\n  async createFulfillment(\n    data: Record<string, unknown>,\n    items: LineItem[],\n    order: Order,\n    fulfillment: Fulfillment\n  ) {\n    // No data is being sent anywhere\n    // No data to be stored in the fulfillment's data object\n    return {}\n  }\n}\n```"
 											}
 										]
 									}
@@ -3356,7 +3356,7 @@
 											},
 											{
 												"kind": "code",
-												"text": "```ts\nclass MyFulfillmentService extends AbstractFulfillmentService {\n  // ...\n  async createFulfillment(\n    data: Record<string, unknown>,\n    items: LineItem,\n    order: Order,\n    fulfillment: Fulfillment\n  ) {\n    // No data is being sent anywhere\n    // No data to be stored in the fulfillment's data object\n    return {}\n  }\n}\n```"
+												"text": "```ts\nclass MyFulfillmentService extends AbstractFulfillmentService {\n  // ...\n  async createFulfillment(\n    data: Record<string, unknown>,\n    items: LineItem[],\n    order: Order,\n    fulfillment: Fulfillment\n  ) {\n    // No data is being sent anywhere\n    // No data to be stored in the fulfillment's data object\n    return {}\n  }\n}\n```"
 											}
 										]
 									}
diff --git a/packages/medusa/src/interfaces/fulfillment-service.ts b/packages/medusa/src/interfaces/fulfillment-service.ts
index b5519cec51..e75a0bdfba 100644
--- a/packages/medusa/src/interfaces/fulfillment-service.ts
+++ b/packages/medusa/src/interfaces/fulfillment-service.ts
@@ -238,7 +238,7 @@ export interface FulfillmentService extends TransactionBaseService {
    *   // ...
    *   async createFulfillment(
    *     data: Record<string, unknown>,
-   *     items: LineItem,
+   *     items: LineItem[],
    *     order: Order,
    *     fulfillment: Fulfillment
    *   ) {
diff --git a/www/apps/docs/content/references/fulfillment/classes/fulfillment.AbstractFulfillmentService.mdx b/www/apps/docs/content/references/fulfillment/classes/fulfillment.AbstractFulfillmentService.mdx
index 5199a07b5c..6c47e43616 100644
--- a/www/apps/docs/content/references/fulfillment/classes/fulfillment.AbstractFulfillmentService.mdx
+++ b/www/apps/docs/content/references/fulfillment/classes/fulfillment.AbstractFulfillmentService.mdx
@@ -196,7 +196,7 @@ class MyFulfillmentService extends AbstractFulfillmentService {
   // ...
   async createFulfillment(
     data: Record<string, unknown>,
-    items: LineItem,
+    items: LineItem[],
     order: Order,
     fulfillment: Fulfillment
   ) {
diff --git a/www/apps/docs/content/references/fulfillment/interfaces/fulfillment.FulfillmentService.mdx b/www/apps/docs/content/references/fulfillment/interfaces/fulfillment.FulfillmentService.mdx
index a4c8aa55ef..a3528912b0 100644
--- a/www/apps/docs/content/references/fulfillment/interfaces/fulfillment.FulfillmentService.mdx
+++ b/www/apps/docs/content/references/fulfillment/interfaces/fulfillment.FulfillmentService.mdx
@@ -194,7 +194,7 @@ class MyFulfillmentService extends AbstractFulfillmentService {
   // ...
   async createFulfillment(
     data: Record<string, unknown>,
-    items: LineItem,
+    items: LineItem[],
     order: Order,
     fulfillment: Fulfillment
   ) {