B2B Collaboration is the Microsoft Entra External ID model that lets organizations invite or provision external users to access tenant resources.
Simple definition
B2B Collaboration is the Microsoft Entra External ID model that lets organizations invite or provision external users to access tenant resources. It belongs to the Microsoft 365 / Entra / Intune vocabulary and is useful when reading architecture diagrams, product documentation, logs, or administration procedures.
What is it used for?
Its main purpose is to collaborate with partners, contractors, or other organizations while keeping their home identity. The practical value depends on the surrounding architecture, security model, and operational requirements.
How does it work?
The external user is represented in the resource tenant and usually authenticates with their home identity provider, then receives access according to resource-tenant policies.
Key points
- Scope: The Microsoft Entra External ID model that lets organizations invite or provision external users to access tenant resources.
- Operational goal: Collaborate with partners, contractors, or other organizations while keeping their home identity.
- Implementation: The external user is represented in the resource tenant and usually authenticates with their home identity provider, then receives access according to resource-tenant policies.
Points to watch
Govern invitations, access duration, groups, Conditional Access, and reviews so guest accounts do not remain active indefinitely.
In short
B2B Collaboration = the Microsoft Entra External ID model that lets organizations invite or provision external users to access tenant resources. Use it when you need to collaborate with partners, contractors, or other organizations while keeping their home identity.