Hi,
I posted this question in the wrong forum, so they recommend me to do it here at the right place:
https://docs.microsoft.com/en-us/azure/active-directory/external-identities/user-properties
In that site above I read the following information:
**Important
Starting October 2021, Microsoft will no longer support the redemption of invitations by creating unmanaged Azure AD accounts and tenants for B2B collaboration scenarios. In preparation, we encourage customers to opt into email one-time passcode authentication. We welcome your feedback on this public preview feature and are excited to create even more ways to collaborate.
What does that mean in detail? What ist ending in October 2021?
At the moment we use several 365-E1-accounts and invite other people to be guests in our organisation. Together we can use e.g. Microsoft Teams. That works good for us. The guests just have registered on microsoft.com, but do not have a licensed account which produces costs. They arent't part of an other organisation which pay for them, too. They have just a free account on microsoft.com.
In other words we do not use B2B exactly, but such as User2B.
Does the warning above mean that such guests we work with, will not be able to sign in or use there guest-account after October 2021 any more?
Thanks for answering!
Malte