Get fulfillments returns null

Fulfillment & Inventory
1

Hi guys,
new to shopify API but have created an internal app and can communicate to see orders etc.

I am trying to get fulfillment id so I can update the tracking info and update the status.

I see https://myshop-2.myshopify.com/admin/api/2024-01/orders/6534376xxx/fulfillments.json but this returns

{
    "fulfillments": []
}

I believe I then use

https://myahopis-2.myshopify.com/admin/api/2024-10/orders/65272584xxx/fulfillments/fullfillment_ID.json

{
           "fulfillment": {
             "tracking_number": "new_tracking_number_123",
             "tracking_urls": ["https://trackingurl.com/track/new_tracking_number_123"],
             "tracking_company": "New Carrier Name",
             "notify_customer": true
           }
         }

Why is the fulfillment blank?

Is this the correct approach.

Any help appreciated.

2

You will need to move to GraphQL as REST is deprecated.

An order in Shopify is made up of one of many fulfillment orders now.
These fulfillment orders are what you would interact with in order to set tracking information etc when orders are dispatched.

You can see an example of how to create a fulfillment here, this page also has really detailed examples of how to get fulfillment orders and other scenarios