• AuthN happens in guest [[202408281918 Entra ID tenant|tenant]]
• But AuthZ happens in my [[202408281918 Entra ID tenant|tenant]]
• User type will be guest
• Cross tenant access settings control on collaboration and inbound mfa trust
• User flow can be designed/ask for things at the time of signup
• Licensing is based on MAU (Monthly Active Users) - first 50,000 free
• To bulk add CSV requires email address and redirection url

B2B Collaboration

• Actually creating a guest account in your tenant
• User can use their own credentials and use it to access resources in our tenant
• Invite External User option

B2B Direct connect

• Content can only be shared as Teams shared channels.
• Between 3 entra IDs on Azure

B2C

• create separate AAD of type B2C
• They are my customers
• maybe they have their own id and we don’t want to use new
• or they can create their ID in this AAD/local account

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references

https://learn.microsoft.com/en-gb/entra/external-id/external-identities-pricing