Forum Discussion
Bejhan
Jul 23, 2026Occasional Reader
Best practices: Open OneDrive/SharePoint sharing but restrict Teams guest access by domain
Hi all, Since SharePoint Online and OneDrive retired OTP-based external sharing in favor of Microsoft Entra B2B, we've run into a policy conflict and would like to hear how others are handling it. ...
yhl
Jul 23, 2026MCT
What you really need to do is to control Entra B2B guest invitation.
Teams ad-hoc chat/meeting - does not require B2B account creation
Sharepoints OTP ad-hoc based sharing - does not require B2B account creation, but this is in the process of being deprecated
Teams "guest access" to internal teams and collaboration - this requires B2B guest invitation
So, you just have to control who can invite B2B guests and that essentially controls which B2B guest can be added to internal Teams. The only gotcha you need to review with user is if they're actually using SharePoints OTP ad-hoc sharing or more B2B guest user based sharing.