Since we are working with several external partners on different projects, I have no clue how to edit the permissions schemes.
We have the current situation:
External Partner A is working on Projects A,B
External Partner B is working on Projects B, C
External Partner C is working on Projects A, C
First, when I only had External Partner A it was easy to handle, since I created a scheme for him.
But now with further Partners this solutions seems to be impossible. Would be very happy about your suggestions and experiences