Forum Discussion
Your SharePoint Sharing Might Break in 2026
A major change is coming and it’s not getting enough attention. Microsoft is moving away from simple OTP sharing and shifting to full Entra B2B. It sounds like a security upgrade, but it complet...
The key correction is that OTP itself is not being retired. SharePoint is replacing its legacy OTP identity model with Microsoft Entra B2B, which can still use email OTP for guest authentication. Existing links remain usable when the recipient has a matching Entra B2B guest account, while recipients without one may receive access denied starting July 2026. Anyone or anonymous links are not affected. Administrators should use SharePoint external sharing reports to identify affected recipients, create missing guest accounts, and validate Conditional Access, cross tenant access, domain restrictions, and guest invitation policies before rollout.