In the XML-RPC “ProductCategoryAssign” table the “Id” field gets returned, but this is not present in the REST v2 version. I pull the data for syncing purposes, and check on the “Id” field.
I see what your team have done here, you basically collected the Product Ids in one go against the Product Category Id. This does not mirror the same way as it was in XML-RPC.
For everyone else, you will have to redo your code based on this change.
Hi Pav, the Id from ProductCategoryAssign was mainly just the association record ID, so it wasn’t carried over into v2. v2 also doesn’t always map 1:1 with XML-RPC structures.