Manage Guest and External access per team
It would be a great feature to be able to manage guest and external access on a per-team basis! Guest access is enabled on the tenant level, External Access as well. Then on team-level I can prohibit the guest or external users...
Jon Webster commented
In addition to disable guest access globally,
* Provide a default policy that allows setting guest access on or off by default.
* Provide UI control of the guest access setting on a per team basis
David McCordick commented
Guest user access can be modified per Team using Powershell. This request should be reworded to request this in the UI. Also, as mentioned below, the default is allow Guest access. This also can be worked around with scripts, but this request is to add it to UI.
Peter Lyon-Marrian commented
You can do this via the AllowedToAddGuests setting on the O365 group associated with the Team, but only after the Team is created. There is no way to change the default setting to false, but there is a workaround we worked out in the meantime...