Set user as inactive once they no longer participate in a project

Request is to have a way to set a user inactive on a project.

As of today we do not seems to have a way to set user inactive once they leave a project.

Also upon being inactive, all his tasks associate to this inactive user should be delegate to another user. This include ( issue, transmittal etc...)

We plan to delete a user but not 100 percent sure of the impact this will have on the system.

Update:

In tne interim of an official workflow, we opt for a Role with no access to cloud services, By standard we are no longer allow to delete a user from a project, even after the user quit the project. We need to keep tracability of who comes in and out of a project.