Hi @Richard_Sohn1 ,
There have been significant changes to the orders/{order_id}/fulfillments.json endpoint payload between version version 2022-07 and version 2022-04. I’d recommend reviewing this overview of the new fulfillment order workflow, the migration guide, and this doc that walks through each step of the fulfillment process.
Please be sure to check our other 2022-07 breaking changes, and post any other fulfillment questions in this FAQ thread here where we’ve addressed other common issues.
Hope that helps!