Fulfillment Error with status code 400

[YannisT]

Hello

I am trying to fulfill an order with the following request (X-Request-Id: 882d93e1-5350-4bf3-b030-b1b69ce1333f)

 https://gigabitstore.myshopify.com/admin/api/2020-10/orders/2893598949485/fulfillments.json

{
 "fulfillment": {
    "location_id": 15414853741,
    "service": "manual",
    "tracking_company": "ELTA Courier",
    "tracking_number": "WH050042034GR",
    "tracking_url": "https://www.elta-courier.gr/search?br=WH050042034GR",
    "line_items": [
        {
         "id": 6177934311533,
         "quantity": 1,
         "variant_id": 33175923949677,
         "fulfillment_service":"manual"
        }],
    "notify_customer": true
  }
}

and i keep getting status code 400 with this error

{"errors":{"fulfillment":"Required parameter missing or invalid"}} 

I checked the Location Order and Line Item IDs and there are correct

Is there something i 'm missing ?

[_JB]

Hey @YannisT,

The call looks right, I also checked the logs but I'm not seeing any useful information. If you're still having trouble with the call, please make your call again and add the parameter ?debug=true to the URL, and provide the request id from that call. The debug param should provide extra information in our logs to help determine where the issue is.

[YannisT]

Hi JB

I made the call again with the debug parameter

Request ID :  8a6274a9-fa66-4e68-b205-7e2e9d01848a

[_JB]

Hey @YannisT,

The logs still aren't telling me anything. Do you mind if I try the call myself on your store?

[YannisT]

Hey JB

You can try it yourself

This is a development store

I would appreciate any help