Programmatically change the Subject of the deliverable inside Plan Activity & make Primary Attachmen
I have a Requirement like this
I need to update an existing WTDocument that is attached to a deliverable within a plan activity. The update involves the following steps:
- Replace the currently attached WTDocument with a new one.
- Set the newly attached WTDocument as the primary attachment to the previous WTDocument.
- Link the newly attached WTDocument as a child document to the previously attached WTDocument.
Please help me solve this requirement.

