Fulfillment order line item does not exist. - But it does and I am using line_item_id?

[Mowtine]

I am trying to fulfil an order with the API. 

I get the fulfillment_orders for the order:

{
"fulfillment_orders": [
        {
"id": 5162433085613,
"shop_id": 59711815853,
"order_id": 4183684907181,
            ...
"supported_actions": [
"create_fulfillment",
"hold"
            ],
"destination": null,
"line_items": [
                {
"id": 10909262577837,
"shop_id": 59711815853,
"fulfillment_order_id": 5162433085613,
"quantity": 1,
"line_item_id": 10763713675437,
"inventory_item_id": 43141097849005,
"fulfillable_quantity": 1,
"variant_id": 41044827701421
                }
            ],
"fulfill_at": null,
            ...
        }
    ]
}

and I use the id for the fulfilment and line_item_id for id for line item:

{"fulfillment":{"message":"MSG","notify_customer":true,
"tracking_info": {"number": 1562678,"url": "https://www.my-shipping-company.com","company": "my-shipping-company"},
    "line_items_by_fulfillment_order":[
{"fulfillment_order_id":5162433085613,
"fulfillment_order_line_items":[
    {"id":10763713675437,
    "quantity":1}
]}]}}​

but when posting that I get: 

"Fulfillment order line item does not exist."

What am I doing wrong here?

Thanks. 

[Mowtine · Accepted solution]

Found the problem. The tutorial at: https://shopify.dev/apps/fulfillment/order-management-apps is INCORRECT.

You can't use: https://{shop}.myshopify.com/admin/api/2021-10/fulfillments.json

You must use: https://{shop}.myshopify.com/admin/api/2021-10/orders/<number>/fulfillments.json

to fulfil an order.

[kolalok]

I believe I found another way to get rid of this error so I mention it here in case it helps someone else.

The documentation is not entirely clear in what exactly should be entered as the "line item ID".

We need to be aware that:

• orders (those created by shop customers) have line items, identified by line_item_id in your listing
• fulfillment orders have their own line items, identified by just id here (10909262577837 in your example), usually corresponding to the order's line items

Surprisingly, the latter is correct when creating a fulfillment using the /fulfillments.json endpoint.

So maybe the tutorial is correct after all, it's only confusing.

[colleenc]

I had the same problem, and the solution is to remove "fulfillment_order_" from in front of line_items. See below:

{
"fulfillment": {
"line_items_by_fulfillment_order": [{
"fulfillment_order_id": {api.id},
"line_items": [{Line Items Fulfillment Array}]
}],
"tracking_info": {
"company": "{Fulfillments: Tracking Company}",
"number": {Fulfillments: Tracking Number},
"url": "{Tracking URL}"
},
"notify_customer": false,
"location_id": {api.assigned_location_id}
}
}

[Matthias7]

My jaw is on the floor that this is a valid fix
happy accident or genius?!?! 
Thank you regardless 🙂

[Gokhale_Method]

I too figured this out but the hard way (debugging), the documentation really needs to improve, the line item id is not the line item id of the order but the fulfillment order have ther own line items and that is the id which is expected.

Small suggestion for all developers.

1) Retrieve the fulfillment order using order api

2) Loop the line_items of the fulfillment order and compare the line_item id with the one you want to fill

3) Once identified use the id of that element as the line_item_id in the request for fulfillment_order_line_items

Thanks,

Sadashiv.

Thanks,

Sadashiv.