Forum Discussion
MS Teams in Cross-Tenant synchronization
https://techcommunity.microsoft.com/t5/microsoft-teams-blog/announcing-more-seamless-collaboration-in-microsoft-teams-for/ba-p/3901092
Currently testing it but it takes quite some time for things to propagate (up to 7 days for users to show in Teams search according to official documentation: https://learn.microsoft.com/en-us/microsoft-365/enterprise/plan-multi-tenant-org-overview?view=o365-worldwide#limitations-for-multi-tenant-organizations-in-microsoft-365-preview)
did you have any luck with testing the Multi-tenant org? We are having this same issue and were just reading the docs. Just wanted to see if it's worth trying.
Things are improved (such as the search functionality) but its evident this is still very much a preview feature meaning there are still cases where a user may end up chatting with a guest account. At least Teams recognizes this now (in most cases, I've had some bugs with previously synced accounts but that could be a matter of time and letting things sync) and gives the user a warning banner:
I've found a couple other 'gotcha's', for example, in Outlook these synced users show up properly in the GAL but pushing the call button from there still directs Teams to the guest account and not the external address:
This means that users still need to know how to switch tenants within Teams. It's likely these sorts of things will get sorted out in time but its anyone's guess how long that will take.
I strongly recommend setting this up in a test environment or rolling it out to a small set of test users to verify this will work for you organization as it may be 'good enough'.
Hope that helps!
