what should be the event to be triggered in PersonHasQERResource table Post approval in IT shop for a resource?

If an entry is made in PersonHasQERResource post IT shop Approval ,what is event that is triggered on PersonHasQERResource (is it Assign or Insert)?

Like we have a process which needs to be trigger when an entry is made in PersonHasQERResource table.

It is triggering perfectly when i assign the resource through manager but if it is requested and assigned via IT shop approval it is not triggering.

Suggestion please