Error when syncing PRPC - "Code=INVALID_VALUE, Message=Field not updateable: UOM.}, ztype=Error"

[Hina]

Problem: If you have bundling enabled and trying to sync a Product/Product Rate Plan Charges to Zuora and see the error below for the PRPC-

zObject:[Id=null, arrayfields={}, fields={Code=INVALID_VALUE, Message=Field 
not updateable: UOM.}, ztype=Error]

[Hina · Accepted solution]

Solution: In this specific case, when I checked the Product Rate Plan Charges, the model was 'Flat Fee Pricing' and the UOM was added to the charge which was causing the issue. Customer used the data loader to load this data and hence by mistake added the UOM as well. 

For the Flat fee pricing model, there is no field in Zuora to populate the UOM. Once these values were deleted, we were able to sync the PRPC to Zuora without any issues.