User Exit for Project, WBS, Netact, Netact element, material

Hi,

There are a lot of User Exits out there and in my opinion it's really hard to find a suitable one.

I need User Exits for there business objects and events:

• Business Object: Project Definition, WBS-Element, Netact-Element, Netact, Material
• Event: Create, Update, delete

Can you recommend any user exit for this? Or maybe a better way to solve this?

My goal is: All of those events need to trigger one special event, that will update a table with a flag

Thanks in advance

Mathias