Perhaps I was not clear enough in my previous post. When updating a data source containing multiple related tables, you should update in this order: 1. ChildTable Deleted Records 2. New, Modified, and Deleted ParentTable Records 3. New ChildTable Records 4. Modified ChildTable Records This order ensures that updates can be performed properly, taking into account the relationship between the tables. The link in my previous post will walk you through how to update records based on their status (Added, Modified, Deleted). Hope this helps.