Hey Charlie,
Did you try setting the dafult value?
You can do it in the attribut property in the domain model.
Pls refer to the image below,
Hope it helps!
You can use a microflow to commit the object.
You can commit the Value of “PartNumber” and “BatchNumber” as follows:
if trim($YourEntityName/PartNumber) = ‘’ then ‘Unknown’ else $YourEntityName/PartNumber
The same with BatchNumber
Hope this helps!