Using Cross-Tenant Access Settings for Azure B2B Collaboration
When Microsoft released cross-tenant access settings into preview, the natural focus was on how this capability enabled external access to Teams shared channels. However, the story is deeper because cross-tenant access settings are also available for Azure AD B2B Collaboration (aka guest user access). A different blocking mechanism is used and it delivers better results, once you're used to the new method.
April 18, 2022