Implementing and managing external identities

There will often be situations where you need to invite guest users to collaborate within your organization’s Microsoft 365 environment. This can be achieved with Azure AD B2B collaboration. The external identities feature allows you to securely share your organization’s apps and services with external users and maintain complete control.

This is achieved with an invitation process that allows external users to access your Microsoft 365 environment with their own credentials. When the invitee accepts the invitation, they are set up in Azure AD as a B2B user object as a Guest.

While B2B collaboration is enabled by default, admins have significant control over the settings. The following steps deal with how a guest user is created:

1. Go to the Azure portal at https://aad.portal.azure.com or the Entra admin center at https://entra.microsoft.com and log in with admin privileges. Navigate to Azure Active Directory ...