- The partner uses their own identities and credentials; Azure AD is not required.
- You don’t need to manage external accounts or passwords.
- You don’t need to sync accounts or manage account lifecycles.
Powershell to invite B2B users:
How to identify stale guest users:
with OneDrive: https://docs.microsoft.com/en-us/onedrive/manage-sharing
Sharing and collaboration:
B2B guest access to on prem applications with AAD AP: