When using the REST service I am not able to get successful updates. It fails with error can’t insert duplicate keys. For testing it I queried item 11R22.5X-10 from the demo data and changed the description and tried both Change and AddChange both failed with same error.
BMXAA4129E – The record for Item=11R22.5X-10, Item Set=SET1 already exists. This validation error is thrown when an attempt is made to insert a new record with a unique key value that already exists in the database. Ensure that the key value for the given record is