Video
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4:24
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September 28, 2026
Microsoft Entra Cross-Tenant Access and B2B Collaboration
Partners and vendors need access to your resources without becoming employees. This Byte covers Microsoft Entra's cross-tenant access settings: configuring inbound and outbound trust, choosing between B2B collaboration and B2B direct connect, and setting default versus per-organization rules, so external users get exactly the access they need, and nothing more, without standing up a single new tenant to manage.
What You Learn
- How cross-tenant access works: the three settings — inbound, outbound, and trust — that govern any relationship with an external organization
- Inbound vs. outbound access: what an external org's users can reach in your tenant, and what your own users can do in theirs
- Trust settings: how accepting a partner's already-verified MFA or device compliance claims avoids forcing their users to re-prove things their own tenant already checked
- The difference between B2B Collaboration (the classic guest-invite model) and B2B Direct Connect (mutual trust, no guest account, built for Teams shared channels)
- Where Multi-Tenant Organizations fit in as a separate tool for connecting tenants within the same company
- The guest account lifecycle — invitation, redemption, and periodic access reviews — and why unreviewed guest accounts are a common audit finding
- A hands-on exercise applying these concepts to real-world partner-access scenarios, separate from the video's own example
Certifications to Further Expand Knowledge
- Microsoft SC-300 — Microsoft Identity and Access Administrator