Azure AD, Multitenant Login

Nathan Veysey 1 Reputation point
2021-11-11T22:06:43.833+00:00

Hello,

We are trying to allow SAML login between Active Directories using a Multitenant Login.
The SAML login works internally, with our users, however attempting to login the external organisation doesn't work.

Attempting to log a user in from the external Active Directory responds with:

Selected user account does not exist in tenant 'AD Tenant' and cannot access the application 'APPLICATIONNAME' in that tenant. The account needs to be added as an external user in the tenant first. Please use a different account.

Now I can manually invite a single user, which will allow this to work, but we are attempting to allow a University with 1000's of users to login via their Active Directory.
How do we ensure that a particular Tenant is part of the MultiTenant configuration for the application, to ensure the external user error doesn't show?

Microsoft Entra ID
Microsoft Entra ID
A Microsoft Entra identity service that provides identity management and access control capabilities. Replaces Azure Active Directory.
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  1. Siva-kumar-selvaraj 15,546 Reputation points
    2021-11-15T18:16:50.1+00:00

    Hello @Nathan Veysey ,

    Thanks for reaching out.

    Here is detailed guidance and patterns for multi-tenant application also please find similar ask from here. Hope this this helps.

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