In Microsoft Entra ID, Collaboration restrictions allow administrators like Holly Spencer to: Specify a list of allowed or blocked domains for external sharing and collaboration. Control which external organizations users can collaborate with via Teams, SharePoint, and other Microsoft 365 services.

 In Microsoft Entra ID, Collaboration restrictions allow administrators like Holly Spencer to:

• Specify a list of allowed or blocked domains for external sharing and collaboration.
• Control which external organizations users can collaborate with via Teams, SharePoint, and other Microsoft 365 services.

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❌ Incorrect options:

• Guest user access: Controls whether guests can be invited, but not which domains are allowed or blocked.
• Enable guest self-service sign-up via user flows: Applies to Azure AD B2C scenarios, not domain-based collaboration restrictions.