Search for task without a specific collaborator

Hi, is there a way to do an advanced search to find all the tasks in a project that a specific user is not a collaborator. We have a new employee that join multiple projects and we want to make sure he is a collaborator on all the projects tasks. I don’t see any way to exclude (NO, NOT, -) someone from the search options.

Thank you

Hi @Francois_Pare, thanks for reaching out!

It’s currently not possible to search by “is not a collaborator” and my apologies for any inconvenience. We have an existing product feedback request for this feature, I recommend you to upvote here: Search Operator NOT