Fulfillment constraint function silently failed

Functions
1

Invocation ID : 085af0fd-9c40-4b41-95a9-88c69d3da20f

Shop : coffeetoolskw.myshopify.com

Output :
{
"operations": [
{
"deliverableLinesMustFulfillFromAdd": {
"deliverableLineIds": [
"gid://shopify/DeliverableCartLine/0"
],
"locationIds": [
"gid://shopify/Location/90752909536"
]
}
},
{
"deliverableLinesMustFulfillFromAdd": {
"deliverableLineIds": [
"gid://shopify/DeliverableCartLine/1"
],
"locationIds": [
"gid://shopify/Location/78659092704"
]
}
}
]
}

From the logs of the function, the function seems to executed correctly, but the actual created order is using the default fulfillment location (which is different than the two locations specified in the output)

The cart is from a draft order, it seems like there was a failure for the function, but there was no error or anything.

2

Hi @soulchild, which date did that Function invocation run? I’ve checked our logs but wasn’t able to find a run with that invocation ID.

3

The function invocation run at 18 August 2026 , 13:47 UTC time .

CleanShot 2026-08-19 at 16.08.53@2x
CleanShot 2026-08-19 at 16.08.53@2x904×950 60.3 KB

The corresponding order ID created from this cart is gid://shopify/Order/6957469073632
Draft order ID that is used to invoke the function is gid://shopify/DraftOrder/1346095612128

Please let me know if you require more info, thank you.