---
updatedAt: 2026-06-19T16:07:00.000Z
---

# Fulfillment (BigCommerce)

Updates an existing shipment associated with an order.

<p><b>Important information:</b></p>

<ul><li><p><b>The order's identifier must exist.</b></p></li><li><p><b>The fulfillment identifier must exist.</b></p></li></ul>

[More information about the ecommerce's resource.](https://developer.bigcommerce.com/api-reference/fa95fffe7822b-update-a-shipment)

# OpenAPI definition

```json
{
  "openapi": "3.0.0",
  "info": {
    "version": "1.0.0",
    "title": "BigCommerce"
  },
  "servers": [
    {
      "url": "https://api.ecartapi.com/api/v2"
    }
  ],
  "paths": {
    "/orders/{orderId}/fulfillments/{fulfillmentId}": {
      "put": {
        "summary": "Fulfillment (BigCommerce)",
        "description": "Updates an existing shipment associated with an order.\n\n<p><b>Important information:</b></p>\n\n<ul><li><p><b>The order's identifier must exist.</b></p></li><li><p><b>The fulfillment identifier must exist.</b></p></li></ul>\n\n[More information about the ecommerce's resource.](https://developer.bigcommerce.com/api-reference/fa95fffe7822b-update-a-shipment)",
        "operationId": "update_orders_fulfillment_bigcommerce",
        "responses": {
          "200": {
            "description": "Successful response",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "properties": {
                    "success": {
                      "type": "boolean",
                      "example": true
                    },
                    "fulfillment": {
                      "type": "object",
                      "properties": {
                        "id": {
                          "type": "string"
                        },
                        "orderId": {
                          "type": "string"
                        },
                        "status": {
                          "type": "object"
                        },
                        "tracking": {
                          "type": "object"
                        },
                        "items": {
                          "type": "array",
                          "items": {
                            "type": "object"
                          }
                        },
                        "dates": {
                          "type": "object"
                        }
                      }
                    }
                  }
                },
                "examples": {
                  "OK": {
                    "summary": "OK",
                    "value": {
                      "success": true,
                      "fulfillment": {
                        "id": "2",
                        "shippingMethod": {
                          "id": null,
                          "service": "Ninguno"
                        },
                        "tracking": {
                          "number": "UPDATEDENV10292K",
                          "url": null,
                          "company": null
                        },
                        "status": {
                          "id": null,
                          "status": null,
                          "shipment": null
                        },
                        "items": [
                          {
                            "id": "1",
                            "variantId": null,
                            "productId": "112",
                            "quantity": "1",
                            "ecartapiUrl": "https://api.ecartapi.com/api/v2/products/1"
                          },
                          {
                            "id": "2",
                            "variantId": null,
                            "productId": "98",
                            "quantity": "1",
                            "ecartapiUrl": "https://api.ecartapi.com/api/v2/products/2"
                          }
                        ],
                        "packages": [],
                        "dates": {
                          "createdAt": "Fri, 10 Dec 2021 23:09:02 +0000",
                          "updatedAt": null,
                          "shippedAt": null
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        },
        "security": [
          {
            "Authorization": []
          }
        ],
        "parameters": [
          {
            "in": "path",
            "name": "fulfillmentId",
            "required": true,
            "schema": {
              "type": "string"
            },
            "description": "The unique identifier of the fulfillment."
          },
          {
            "in": "path",
            "name": "orderId",
            "required": true,
            "schema": {
              "type": "string"
            },
            "description": "The unique identifier of the order."
          }
        ],
        "requestBody": {
          "required": true,
          "content": {
            "application/json": {
              "schema": {
                "type": "object",
                "properties": {
                  "fulfillment": {
                    "type": "object",
                    "properties": {
                      "tracking": {
                        "type": "object",
                        "properties": {
                          "number": {
                            "type": "string"
                          },
                          "company": {
                            "type": "string"
                          }
                        }
                      }
                    }
                  }
                }
              },
              "examples": {
                "New Example": {
                  "summary": "New Example",
                  "value": "{\n    \"fulfillment\": {\n        \"tracking\": {\n            \"number\": \"UPDATEDENV10292K\",\n            \"company\": \"Fedex\"\n        },\n        \"shippingAddressId\": \"16\"\n    }\n}{}"
                }
              }
            }
          }
        }
      }
    }
  },
  "components": {
    "securitySchemes": {
      "Authorization": {
        "type": "apiKey",
        "in": "header",
        "name": "Authorization",
        "description": "Used to authenticate API requests after completing the store authorization or integration process. The access_token is generated once the e-commerce store grants access and must be included in every request header to validate the authorized connection."
      }
    }
  },
  "x-readme": {
    "explorer-enabled": true,
    "proxy-enabled": true
  },
  "security": [
    {
      "Authorization": []
    }
  ]
}
```