RE: CRMScript Trigger for deleting project members
The documentation for project member webhook events
Documentation
does say, a project Id is not a part of callback content of deleting project member webhook. We tried to get "Changes" for both created and deleted to figure it out. The webhook was fired, but "Changes" was void in both cases:

Primary key and event are both there.

How can we get the project_id from a project member deleted webhook?
Edit: found it out with Changes in created: getVariable("Changes.project_id");
But this is missing in deleted webhook.
Is there a method to customize the projectmember webhook to contain project Id on delete?