Duplicate inventory-update webhooks (and timing question)

GraphQL API
1

It looks like we are often, but not always, receiving duplicate inventory-update webhooks at the exact same time.

An example would be SKU “UMP.97996“ where we receive two identical inventory-update webhooks at Sep 04, 2025 10:16. This was triggered from a shipment. We know there was only one change since that shipment was the last unit available.

On a related note, what is the timing that we should expect? When investigating this webhook (Order 75933 with SKU UMP.97996) we see:

- 9:50am: Label generated and order fulfilled

- 9:55am: Product inventory log in the web admin shows inventory decremented by 1

- 10:03am: shipment-update webhook received on our server (so 13 minutes after label generation)

- 10:16am: inventory-update webhook received on our server (so 21 minutes after the inventory log was updated, 26 minutes after the actual shipping event)

2

Hello,

For issues with webhooks, PAPI Calls, or anything that requires investigation from Shiphero Support, Please submit a ticket.

Thank you

3

Just for clarity, we were previously told by support that all technical questions should be posted here - thus the posting.

4

Hey David. Can you PM Me the Ticket number and i will make sure they correct that.

These are more recent changes we are making as our api team is expanding.