Shopify Fulfillment API

openapi: 3.1.0
info:
  title: Shopify Admin REST About Fulfillment API
  description: The Shopify Admin REST API lets you build apps and integrations that extend and enhance the Shopify admin. Access products, customers, orders, inventory, fulfillment, and more. Endpoints are organized by resource type and versioned by release date.
  version: 2025-01
  contact:
    name: Shopify
    url: https://shopify.dev/docs/api/admin-rest
    email: api@shopify.com
  license:
    name: Shopify API Terms
    url: https://www.shopify.com/legal/api-terms
  x-date: '2026-03-04'
servers:
- url: https://{store}.myshopify.com/admin/api/2025-01
  description: Shopify Admin REST API
  variables:
    store:
      default: my-store
      description: The Shopify store subdomain
security:
- AccessToken: []
tags:
- name: Fulfillment
paths:
  /admin/api/2020-01/assigned_fulfillment_orders.json:
    get:
      summary: Shopify Retrieves A List Of Fulfillment Orders On A Shop For A Specific App
      description: https://shopify.dev/docs/admin-api/rest/reference/shipping-and-fulfillment/assignedfulfillmentorder#index-2020-01
      parameters:
      - in: query
        name: assignment_status
        description: "The assigment status of the fulfillment orders that should be returned:\n                    \n                        cancellation_requested: Fulfillment orders for which the merchant has requested cancellation of the previously accepted fulfillment request.\n                        fulfillment_requested: Fulfillment orders for which the merchant has requested fulfillment.\n                        fulfillment_accepted: Fulfillment orders for which the merchant's fulfillment request has been accepted. Any number of fulfillments can be created on these fulfillment orders to completely fulfill the requested items."
        schema: {}
        required: false
      - in: query
        name: location_ids
        description: The IDs of the assigned locations of the fulfillment orders that should be returned.
        schema: {}
        required: false
      - in: query
        name: location_ids[]
        schema:
          type: integer
        description: location_ids[]
        required: false
      tags:
      - Fulfillment
      responses:
        '200':
          description: ''
      operationId: deprecated_202001_get_assigned_fulfillment_orders
      x-api-evangelist-processing:
        PascalCaseOperationSummaries: true
        ChooseTags: true
  /admin/api/2020-04/assigned_fulfillment_orders.json:
    get:
      summary: Shopify Retrieves A List Of Fulfillment Orders On A Shop For A Specific App
      description: https://shopify.dev/docs/admin-api/rest/reference/shipping-and-fulfillment/assignedfulfillmentorder#index-2020-04
      parameters:
      - in: query
        name: assignment_status
        description: "The assigment status of the fulfillment orders that should be returned:\n                    \n                        cancellation_requested: Fulfillment orders for which the merchant has requested cancellation of the previously accepted fulfillment request.\n                        fulfillment_requested: Fulfillment orders for which the merchant has requested fulfillment.\n                        fulfillment_accepted: Fulfillment orders for which the merchant's fulfillment request has been accepted. Any number of fulfillments can be created on these fulfillment orders to completely fulfill the requested items."
        schema: {}
        required: false
      - in: query
        name: location_ids
        description: The IDs of the assigned locations of the fulfillment orders that should be returned.
        schema: {}
        required: false
      - in: query
        name: location_ids[]
        schema:
          type: integer
        description: location_ids[]
        required: false
      tags:
      - Fulfillment
      responses:
        '200':
          description: ''
      operationId: deprecated_202004_get_assigned_fulfillment_orders
      x-api-evangelist-processing:
        PascalCaseOperationSummaries: true
        ChooseTags: true
  /admin/api/2020-07/assigned_fulfillment_orders.json:
    get:
      summary: Shopify Retrieves A List Of Fulfillment Orders On A Shop For A Specific App
      description: https://shopify.dev/docs/admin-api/rest/reference/shipping-and-fulfillment/assignedfulfillmentorder#index-2020-07
      parameters:
      - in: query
        name: assignment_status
        description: "The assigment status of the fulfillment orders that should be returned:\n                    \n                        cancellation_requested: Fulfillment orders for which the merchant has requested cancellation of the previously accepted fulfillment request.\n                        fulfillment_requested: Fulfillment orders for which the merchant has requested fulfillment.\n                        fulfillment_accepted: Fulfillment orders for which the merchant's fulfillment request has been accepted. Any number of fulfillments can be created on these fulfillment orders to completely fulfill the requested items."
        schema: {}
        required: false
      - in: query
        name: location_ids
        description: The IDs of the assigned locations of the fulfillment orders that should be returned.
        schema: {}
        required: false
      - in: query
        name: location_ids[]
        schema:
          type: integer
        description: location_ids[]
        required: false
      tags:
      - Fulfillment
      responses:
        '200':
          description: ''
      operationId: deprecated_202007_get_assigned_fulfillment_orders
      x-api-evangelist-processing:
        PascalCaseOperationSummaries: true
        ChooseTags: true
  /admin/api/2020-10/assigned_fulfillment_orders.json:
    get:
      summary: Shopify Retrieves A List Of Fulfillment Orders On A Shop For A Specific App
      description: https://shopify.dev/docs/admin-api/rest/reference/shipping-and-fulfillment/assignedfulfillmentorder#index-2020-10
      parameters:
      - in: query
        name: assignment_status
        description: "The assigment status of the fulfillment orders that should be returned:\n                    \n                        cancellation_requested: Fulfillment orders for which the merchant has requested cancellation of the previously accepted fulfillment request.\n                        fulfillment_requested: Fulfillment orders for which the merchant has requested fulfillment.\n                        fulfillment_accepted: Fulfillment orders for which the merchant's fulfillment request has been accepted. Any number of fulfillments can be created on these fulfillment orders to completely fulfill the requested items."
        schema: {}
        required: false
      - in: query
        name: location_ids
        description: The IDs of the assigned locations of the fulfillment orders that should be returned.
        schema: {}
        required: false
      - in: query
        name: location_ids[]
        schema:
          type: integer
        description: location_ids[]
        required: false
      tags:
      - Fulfillment
      responses:
        '200':
          description: ''
      operationId: get_assigned_fulfillment_orders
      x-api-evangelist-processing:
        PascalCaseOperationSummaries: true
        ChooseTags: true
  /admin/api/2021-01/assigned_fulfillment_orders.json:
    get:
      summary: Shopify Retrieves A List Of Fulfillment Orders On A Shop For A Specific App
      description: https://shopify.dev/docs/admin-api/rest/reference/shipping-and-fulfillment/assignedfulfillmentorder#index-2021-01
      parameters:
      - in: query
        name: assignment_status
        description: "The assigment status of the fulfillment orders that should be returned:\n                    \n                        cancellation_requested: Fulfillment orders for which the merchant has requested cancellation of the previously accepted fulfillment request.\n                        fulfillment_requested: Fulfillment orders for which the merchant has requested fulfillment.\n                        fulfillment_accepted: Fulfillment orders for which the merchant's fulfillment request has been accepted. Any number of fulfillments can be created on these fulfillment orders to completely fulfill the requested items."
        schema: {}
        required: false
      - in: query
        name: location_ids
        description: The IDs of the assigned locations of the fulfillment orders that should be returned.
        schema: {}
        required: false
      - in: query
        name: location_ids[]
        schema:
          type: integer
        description: location_ids[]
        required: false
      tags:
      - Fulfillment
      responses:
        '200':
          description: ''
      operationId: deprecated_202101_get_assigned_fulfillment_orders
      x-api-evangelist-processing:
        PascalCaseOperationSummaries: true
        ChooseTags: true
  /admin/api/unstable/assigned_fulfillment_orders.json:
    get:
      summary: Shopify Retrieves A List Of Fulfillment Orders On A Shop For A Specific App
      description: https://shopify.dev/docs/admin-api/rest/reference/shipping-and-fulfillment/assignedfulfillmentorder#index-unstable
      parameters:
      - in: query
        name: assignment_status
        description: "The assigment status of the fulfillment orders that should be returned:\n                    \n                        cancellation_requested: Fulfillment orders for which the merchant has requested cancellation of the previously accepted fulfillment request.\n                        fulfillment_requested: Fulfillment orders for which the merchant has requested fulfillment.\n                        fulfillment_accepted: Fulfillment orders for which the merchant's fulfillment request has been accepted. Any number of fulfillments can be created on these fulfillment orders to completely fulfill the requested items."
        schema: {}
        required: false
      - in: query
        name: location_ids
        description: The IDs of the assigned locations of the fulfillment orders that should be returned.
        schema: {}
        required: false
      - in: query
        name: location_ids[]
        schema:
          type: integer
        description: location_ids[]
        required: false
      tags:
      - Fulfillment
      responses:
        '200':
          description: ''
      operationId: deprecated_unstable_get_assigned_fulfillment_orders
      x-api-evangelist-processing:
        PascalCaseOperationSummaries: true
        ChooseTags: true
  /admin/api/2020-01/fulfillment_orders/{fulfillment_order_id}/cancellation_request.json:
    post:
      requestBody:
        content:
          application/json:
            schema: {}
            examples:
              example1:
                value:
                  cancellation_request:
                    message: The customer changed his mind.
                summary: Sends a cancellation request to the fulfillment service of a fulfillment order and updates the fulfillment order
      summary: Shopify Sends A Cancellation Request To The Fulfillment Service Of A Fulfillment Order
      description: https://shopify.dev/docs/admin-api/rest/reference/shipping-and-fulfillment/cancellationrequest#create-2020-01
      parameters:
      - in: path
        name: fulfillment_order_id
        required: true
        schema:
          type: string
        description: fulfillment_order_id
      - in: query
        name: message
        description: An optional reason for the cancellation request.
        schema: {}
        required: false
      tags:
      - Fulfillment
      responses:
        '200':
          description: ''
      operationId: deprecated_202001_create_fulfillment_orders_param_fulfillment_order_id_cancellation_request
      x-api-evangelist-processing:
        PascalCaseOperationSummaries: true
        ChooseTags: true
  /admin/api/2020-01/fulfillment_orders/{fulfillment_order_id}/cancellation_request/accept.json:
    post:
      requestBody:
        content:
          application/json:
            schema: {}
            examples:
              example1:
                value:
                  cancellation_request:
                    message: We had not started any processing yet.
                summary: Accepts a cancellation request sent to a fulfillment service and updates the fulfillment order
      summary: Shopify Accepts A Cancellation Request Sent To A Fulfillment Service For A Fulfillment Order
      description: https://shopify.dev/docs/admin-api/rest/reference/shipping-and-fulfillment/cancellationrequest#accept-2020-01
      parameters:
      - in: path
        name: fulfillment_order_id
        required: true
        schema:
          type: string
        description: fulfillment_order_id
      - in: query
        name: message
        description: An optional reason for accepting the cancellation request.
        schema: {}
        required: false
      tags:
      - Fulfillment
      responses:
        '200':
          description: ''
      operationId: deprecated_202001_create_fulfillment_orders_param_fulfillment_order_id_cancellation_request_accept
      x-api-evangelist-processing:
        PascalCaseOperationSummaries: true
        ChooseTags: true
  /admin/api/2020-01/fulfillment_orders/{fulfillment_order_id}/cancellation_request/reject.json:
    post:
      requestBody:
        content:
          application/json:
            schema: {}
            examples:
              example1:
                value:
                  cancellation_request:
                    message: We have already send the shipment out.
                summary: Rejects a cancellation request sent to a fulfillment service and updates the fulfillment order
      summary: Shopify Rejects A Cancellation Request Sent To A Fulfillment Service For A Fulfillment Order
      description: https://shopify.dev/docs/admin-api/rest/reference/shipping-and-fulfillment/cancellationrequest#reject-2020-01
      parameters:
      - in: path
        name: fulfillment_order_id
        required: true
        schema:
          type: string
        description: fulfillment_order_id
      - in: query
        name: message
        description: An optional reason for rejecting the cancellation request.
        schema: {}
        required: false
      tags:
      - Fulfillment
      responses:
        '200':
          description: ''
      operationId: deprecated_202001_create_fulfillment_orders_param_fulfillment_order_id_cancellation_request_reject
      x-api-evangelist-processing:
        PascalCaseOperationSummaries: true
        ChooseTags: true
  /admin/api/2020-04/fulfillment_orders/{fulfillment_order_id}/cancellation_request.json:
    post:
      requestBody:
        content:
          application/json:
            schema: {}
            examples:
              example1:
                value:
                  cancellation_request:
                    message: The customer changed his mind.
                summary: Sends a cancellation request to the fulfillment service of a fulfillment order and updates the fulfillment order
      summary: Shopify Sends A Cancellation Request To The Fulfillment Service Of A Fulfillment Order
      description: https://shopify.dev/docs/admin-api/rest/reference/shipping-and-fulfillment/cancellationrequest#create-2020-04
      parameters:
      - in: path
        name: fulfillment_order_id
        required: true
        schema:
          type: string
        description: fulfillment_order_id
      - in: query
        name: message
        description: An optional reason for the cancellation request.
        schema: {}
        required: false
      tags:
      - Fulfillment
      responses:
        '200':
          description: ''
      operationId: deprecated_202004_create_fulfillment_orders_param_fulfillment_order_id_cancellation_request
      x-api-evangelist-processing:
        PascalCaseOperationSummaries: true
        ChooseTags: true
  /admin/api/2020-04/fulfillment_orders/{fulfillment_order_id}/cancellation_request/accept.json:
    post:
      requestBody:
        content:
          application/json:
            schema: {}
            examples:
              example1:
                value:
                  cancellation_request:
                    message: We had not started any processing yet.
                summary: Accepts a cancellation request sent to a fulfillment service and updates the fulfillment order
      summary: Shopify Accepts A Cancellation Request Sent To A Fulfillment Service For A Fulfillment Order
      description: https://shopify.dev/docs/admin-api/rest/reference/shipping-and-fulfillment/cancellationrequest#accept-2020-04
      parameters:
      - in: path
        name: fulfillment_order_id
        required: true
        schema:
          type: string
        description: fulfillment_order_id
      - in: query
        name: message
        description: An optional reason for accepting the cancellation request.
        schema: {}
        required: false
      tags:
      - Fulfillment
      responses:
        '200':
          description: ''
      operationId: deprecated_202004_create_fulfillment_orders_param_fulfillment_order_id_cancellation_request_accept
      x-api-evangelist-processing:
        PascalCaseOperationSummaries: true
        ChooseTags: true
  /admin/api/2020-04/fulfillment_orders/{fulfillment_order_id}/cancellation_request/reject.json:
    post:
      requestBody:
        content:
          application/json:
            schema: {}
            examples:
              example1:
                value:
                  cancellation_request:
                    message: We have already send the shipment out.
                summary: Rejects a cancellation request sent to a fulfillment service and updates the fulfillment order
      summary: Shopify Rejects A Cancellation Request Sent To A Fulfillment Service For A Fulfillment Order
      description: https://shopify.dev/docs/admin-api/rest/reference/shipping-and-fulfillment/cancellationrequest#reject-2020-04
      parameters:
      - in: path
        name: fulfillment_order_id
        required: true
        schema:
          type: string
        description: fulfillment_order_id
      - in: query
        name: message
        description: An optional reason for rejecting the cancellation request.
        schema: {}
        required: false
      tags:
      - Fulfillment
      responses:
        '200':
          description: ''
      operationId: deprecated_202004_create_fulfillment_orders_param_fulfillment_order_id_cancellation_request_reject
      x-api-evangelist-processing:
        PascalCaseOperationSummaries: true
        ChooseTags: true
  /admin/api/2020-07/fulfillment_orders/{fulfillment_order_id}/cancellation_request.json:
    post:
      requestBody:
        content:
          application/json:
            schema: {}
            examples:
              example1:
                value:
                  cancellation_request:
                    message: The customer changed his mind.
                summary: Sends a cancellation request to the fulfillment service of a fulfillment order and updates the fulfillment order
      summary: Shopify Sends A Cancellation Request To The Fulfillment Service Of A Fulfillment Order
      description: https://shopify.dev/docs/admin-api/rest/reference/shipping-and-fulfillment/cancellationrequest#create-2020-07
      parameters:
      - in: path
        name: fulfillment_order_id
        required: true
        schema:
          type: string
        description: fulfillment_order_id
      - in: query
        name: message
        description: An optional reason for the cancellation request.
        schema: {}
        required: false
      tags:
      - Fulfillment
      responses:
        '200':
          description: ''
      operationId: deprecated_202007_create_fulfillment_orders_param_fulfillment_order_id_cancellation_request
      x-api-evangelist-processing:
        PascalCaseOperationSummaries: true
        ChooseTags: true
  /admin/api/2020-07/fulfillment_orders/{fulfillment_order_id}/cancellation_request/accept.json:
    post:
      requestBody:
        content:
          application/json:
            schema: {}
            examples:
              example1:
                value:
                  cancellation_request:
                    message: We had not started any processing yet.
                summary: Accepts a cancellation request sent to a fulfillment service and updates the fulfillment order
      summary: Shopify Accepts A Cancellation Request Sent To A Fulfillment Service For A Fulfillment Order
      description: https://shopify.dev/docs/admin-api/rest/reference/shipping-and-fulfillment/cancellationrequest#accept-2020-07
      parameters:
      - in: path
        name: fulfillment_order_id
        required: true
        schema:
          type: string
        description: fulfillment_order_id
      - in: query
        name: message
        description: An optional reason for accepting the cancellation request.
        schema: {}
        required: false
      tags:
      - Fulfillment
      responses:
        '200':
          description: ''
      operationId: deprecated_202007_create_fulfillment_orders_param_fulfillment_order_id_cancellation_request_accept
      x-api-evangelist-processing:
        PascalCaseOperationSummaries: true
        ChooseTags: true
  /admin/api/2020-07/fulfillment_orders/{fulfillment_order_id}/cancellation_request/reject.json:
    post:
      requestBody:
        content:
          application/json:
            schema: {}
            examples:
              example1:
                value:
                  cancellation_request:
                    message: We have already send the shipment out.
                summary: Rejects a cancellation request sent to a fulfillment service and updates the fulfillment order
      summary: Shopify Rejects A Cancellation Request Sent To A Fulfillment Service For A Fulfillment Order
      description: https://shopify.dev/docs/admin-api/rest/reference/shipping-and-fulfillment/cancellationrequest#reject-2020-07
      parameters:
      - in: path
        name: fulfillment_order_id
        required: true
        schema:
          type: string
        description: fulfillment_order_id
      - in: query
        name: message
        description: An optional reason for rejecting the cancellation request.
        schema: {}
        required: false
      tags:
      - Fulfillment
      responses:
        '200':
          description: ''
      operationId: deprecated_202007_create_fulfillment_orders_param_fulfillment_order_id_cancellation_request_reject
      x-api-evangelist-processing:
        PascalCaseOperationSummaries: true
        ChooseTags: true
  /admin/api/2020-10/fulfillment_orders/{fulfillment_order_id}/cancellation_request.json:
    post:
      requestBody:
        content:
          application/json:
            schema: {}
            examples:
              example1:
                value:
                  cancellation_request:
                    message: The customer changed his mind.
                summary: Sends a cancellation request to the fulfillment service of a fulfillment order and updates the fulfillment order
      summary: Shopify Sends A Cancellation Request To The Fulfillment Service Of A Fulfillment Order
      description: https://shopify.dev/docs/admin-api/rest/reference/shipping-and-fulfillment/cancellationrequest#create-2020-10
      parameters:
      - in: path
        name: fulfillment_order_id
        required: true
        schema:
          type: string
        description: fulfillment_order_id
      - in: query
        name: message
        description: An optional reason for the cancellation request.
        schema: {}
        required: false
      tags:
      - Fulfillment
      responses:
        '200':
          description: ''
      operationId: create_fulfillment_orders_param_fulfillment_order_id_cancellation_request
      x-api-evangelist-processing:
        PascalCaseOperationSummaries: true
        ChooseTags: true
  /admin/api/2020-10/fulfillment_orders/{fulfillment_order_id}/cancellation_request/accept.json:
    post:
      requestBody:
        content:
          application/json:
            schema: {}
            examples:
              example1:
                value:
                  cancellation_request:
                    message: We had not started any processing yet.
                summary: Accepts a cancellation request sent to a fulfillment service and updates the fulfillment order
      summary: Shopify Accepts A Cancellation Request Sent To A Fulfillment Service For A Fulfillment Order
      description: https://shopify.dev/docs/admin-api/rest/reference/shipping-and-fulfillment/cancellationrequest#accept-2020-10
      parameters:
      - in: path
        name: fulfillment_order_id
        required: true
        schema:
          type: string
        description: fulfillment_order_id
      - in: query
        name: message
        description: An optional reason for accepting the cancellation request.
        schema: {}
        required: false
      tags:
      - Fulfillment
      responses:
        '200':
          description: ''
      operationId: create_fulfillment_orders_param_fulfillment_order_id_cancellation_request_accept
      x-api-evangelist-processing:
        PascalCaseOperationSummaries: true
        ChooseTags: true
  /admin/api/2020-10/fulfillment_orders/{fulfillment_order_id}/cancellation_request/reject.json:
    post:
      requestBody:
        content:
          application/json:
            schema: {}
            examples:
              example1:
                value:
                  cancellation_request:
                    message: We have already send the shipment out.
                summary: Rejects a cancellation request sent to a fulfillment service and updates the fulfillment order
      summary: Shopify Rejects A Cancellation Request Sent To A Fulfillment Service For A Fulfillment Order
      description: https://shopify.dev/docs/admin-api/rest/reference/shipping-and-fulfillment/cancellationrequest#reject-2020-10
      parameters:
      - in: path
        name: fulfillment_order_id
        required: true
        schema:
          type: string
        description: fulfillment_order_id
      - in: query
        name: message
        description: An optional reason for rejecting the cancellation request.
        schema: {}
        required: false
      tags:
      - Fulfillment
      responses:
        '200':
          description: ''
      operationId: create_fulfillment_orders_param_fulfillment_order_id_cancellation_request_reject
      x-api-evangelist-processing:
        PascalCaseOperationSummaries: true
        ChooseTags: true
  /admin/api/2021-01/fulfillment_orders/{fulfillment_order_id}/cancellation_request.json:
    post:
      requestBody:
        content:
          application/json:
            schema: {}
            examples:
              example1:
                value:
                  cancellation_request:
                    message: The customer changed his mind.
                summary: Sends a cancellation request to the fulfillment service of a fulfillment order and updates the fulfillment order
      summary: Shopify Sends A Cancellation Request To The Fulfillment Service Of A Fulfillment Order
      description: https://shopify.dev/docs/admin-api/rest/reference/shipping-and-fulfillment/cancellationrequest#create-2021-01
      parameters:
      - in: path
        name: fulfillment_order_id
        required: true
        schema:
          type: string
        description: fulfillment_order_id
      - in: query
        name: message
        description: An optional reason for the cancellation request.
        schema: {}
        required: false
      tags:
      - Fulfillment
      responses:
        '200':
          description: ''
      operationId: deprecated_202101_create_fulfillment_orders_param_fulfillment_order_id_cancellation_request
      x-api-evangelist-processing:
        PascalCaseOperationSummaries: true
        ChooseTags: true
  /admin/api/2021-01/fulfillment_orders/{fulfillment_order_id}/cancellation_request/accept.json:
    post:
      requestBody:
        content:
          application/json:
            schema: {}
            examples:
              example1:
                value:
                  cancellation_request:
                    message: We had not started any processing yet.
                summary: Accepts a cancellation request sent to a fulfillment service and updates the fulfillment order
      summary: Shopify Accepts A Cancellation Request Sent To A Fulfillment Service For A Fulfillment Order
      description: https://shopify.dev/docs/admin-api/rest/reference/shipping-and-fulfillment/cancellationrequest#accept-2021-01
      parameters:
      - in: path
        name: fulfillment_order_id
        required: true
        schema:
          type: string
        description: fulfillment_order_id
      - in: query
        name: message
        description: An optional reason for accepting the cancellation request.
        schema: {}
        required: false
      tags:
      - Fulfillment
      responses:
        '200':
          description: ''
      operationId: deprecated_202101_create_fulfillment_orders_param_fulfillment_order_id_cancellation_request_accept
      x-api-evangelist-processing:
        PascalCaseOperationSummaries: true
        ChooseTags: true
  /admin/api/2021-01/fulfillment_orders/{fulfillment_order_id}/cancellation_request/reject.json:
    post:
      requestBody:
        content:
          application/json:
            schema: {}
            examples:
              example1:
                value:
                  cancellation_request:
                    message: We have already send the shipment out.
                summary: Rejects a cancellation request sent to a fulfillment service and updates the fulfillment order
      summary: Shopify Rejects A Cancellation Request Sent To A Fulfillment Service For A Fulfillment Order
      description: https://shopify.dev/docs/admin-api/rest/reference/shipping-and-fulfillment/cancellationrequest#reject-2021-01
      parameters:
      - in: path
        name: fulfillment_order_id
        required: true
        schema:
          type: string
        description: fulfillment_order_id
      - in: query
        name: message
        description: An optional reason for rejecting the cancellation request.
        schema: {}
        required: false
      tags:
      - Fulfillment
      responses:
        '200':
          description: ''
      operationId: deprecated_202101_create_fulfillment_orders_param_fulfillment_order_id_cancellation_request_reject
      x-api-evangelist-processing:
        PascalCaseOperationSummaries: true
        ChooseTags: true
  /admin/api/unstable/fulfillment_orders/{fulfillment_order_id}/cancellation_request.json:
    post:
      requestBody:
        content:
          application/json:
            schema: {}
            examples:
              example1:
                value:
                  cancellation_request:
                    message: The customer changed his mind.
                summary: Sends a cancellation request to the fulfillment service of a fulfillment order and updates the fulfillment order
      summary: Shopify Sends A Cancellation Request To The Fulfillment Service Of A Fulfillment Order
      description: https://shopify.dev/docs/admin-api/rest/reference/shipping-and-fulfillment/cancellationrequest#create-unstable
      parameters:
      - in: path
        name: fulfillment_order_id
        required: true
        schema:
          type: string
        description: fulfillment_order_id
      - in: query
        name: message
        description: An optional reason for the cancellation request.
        schema: {}
        required: false
      tags:
      - Fulfillment
      responses:
        '200':
          description: ''
      operationId: deprecated_unstable_create_fulfillment_orders_param_fulfillment_order_id_cancellation_request
      x-api-evangelist-processing:
        PascalCaseOperationSummaries: true
        ChooseTags: true
  /admin/api/unstable/fulfillment_orders/{fulfillment_order_id}/cancellation_request/accept.json:
    post:
      requestBody:
        content:
          application/json:
            schema: {}
            examples:
              example

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# Full source: https://raw.githubusercontent.com/api-evangelist/shopify/refs/heads/main/openapi/shopify-fulfillment-api-openapi.yml