404 NotFound Create Fulfillment

[Sago]

Hello,

i am currently developing an logistic App that should manage our Shop Orders and Fulfillment over the admin API.

I receive 404 when I create a Fulfillment for an exisiting Fulfillment Order.

Here my current approche:

Retrieve Fullfillment Orders for Order

GET Request: https://devilinme.de/admin/api/2023-01/orders/5346993570110/fulfillment_orders.json

Response: 

"fulfillment_orders": [

        {

            "id": 6288032923966,

            "shop_id": 71060685118,

            "order_id": 5346993570110,

            "assigned_location_id": 76931334462,

            "request_status": "unsubmitted",

            "status": "open",

...

Create Fulfillment for open Fulfillment Order 

POST Request: https://devilinme.de/admin/api/2023-01/fulfillments.json

Request JSON:

{

    "fulfillment": {

        "message": "The package was shipped this morning.",

        "notify_customer": false,

        "line_items_by_fulfillment_order": [

            {

                "fulfillment_order_id": "6288032923966"

            }

        ]

    }

}

Response:

{

    "errors": "Not Found"

}

Regarding to the API Guide and docs and based on https://community.shopify.com/c/shopify-apis-and-sdks/fulfillment-returns-404-not-found/m-p/1758277 it should work this way.

I am using API Version 2023-01.

What I am doing wrong? I would appreciate any help!

Regards

Sascha

[Sago · Accepted solution]

I found the solution ...

we used our own domain for the API communication https://devilinme.de/ but for posting data you have to use the shopify address itself https://devilinme.myshopify.com/