Staff Notebook Permission keeps removing staff

[andy_nic]

We have a staff Team, with a staff notebook, staff can still access the Team however since start of last week some staff keep getting you no longer have permission to the notebook. it seems to be all accounts created since 2023, tried removing them from the team and adding back in again. but doesn't work still no access to the notebook. because it staff team you can't set the permission from what i can see on the notebook setting, created 3 test accounts added it to the team and just get "We're still setting up access to the notebook for you" added a old existing test account and works straight away and doesn't get removed. Got ticket with microsoft just wondering if anyone has come across this before? also looked at the new and old test accounts can't see any difference in AD or Entra. 

[psydii]

There have been some odd goings on with permissions and security when 365 Groups are involved.  From what I can intuit, most front-end systems have been coded so that 365 Groups behave (as far as a user is concerned) like a security group, but are in fact not actually security groups. A back-end change in May-October last year broke the mechanism by which the front end performed this sleight-of-hand, and then as part of an attempted global fix to this mess, they further broke customers bespoke configs as well. While they try and unwind that mess, there have been increasing numbers of incidents on the Health Dashboard around permissions on various SharePoint/OneDrive/Exchange and adjacent "apps".

...so it seems likely to me there is something the old backend-frontend set up did in 2023 to users/groups that it has stopped doing, and now you are seeing problems as MS try to rollout/back further changes.

 

[edit - you have in fact got a ticket open with them already]

 

Edited January 14 by psydii