Hi Peter,
When i faced this problem,it was my ES_Record_UUID field that was blank that's why it was creating new records instead of updating the correct one.Once I made sure all ES_Record_UUID had values,i did not face this problem again.
Hi Peter,
The ES instances of your tables linked with the EasySync_Payload_Details instance should allow for creation and deletion of records on the right side of the relationship,perhaps that is missing in your relationships?