Hi @FLSDBH
You can try using this endpoint: ‘admin/api/2023-07/fulfillments.json’ and then including the fulfillment order id in the body under “line_items_by_fulfillment_order”
So the body would look something like this:
{
“fulfillment”: {
“notify_customer”: true,
“tracking_info”: {
“number”: “1234567890”,
“company”: “USPS”
}
“line_items_by_fulfillment_order”:{
“fulfillment_order_id”: YOUR FULFILLMENT ORDER ID
}
}
}