Troubleshooting Guest Messaging Sync Issues Between Tenants
Question
Hi All,
we are experiencing issues messaging guests that we synched from another tenant. We can find them in teams, but when we send a message nothing happens. Guest is not receiving any messages or notification, both tenant org settings are set to allow messaging. Any solutions?
Posted by Nikita Lunev in HTMD FB Group

Answers ( 2 )
Replied by Nikita Lunev
JP Rodrigues yes both in Azure, both are on p1 licenses
Replied by JP Rodrigues
Nikita Lunev and Team licenses? They don’t need P1 licenses
Replied by Nikita Lunev
JP Rodrigues need p1 or p2 for sync to work. Won’t even let you create sync config without p1
For More Details Simplified Troubleshooting with Microsoft 365 App Remote Diagnostics in Intune
https://www.anoopcnair.com/microsoft-365-app-remote-diagnostics-in-intune/
Replied by JP Rodrigues
Is this a Intune issue or Azure issue?
Replied by Nikita Lunev
JP Rodrigues Microsoft
Replied by JP Rodrigues
Nikita Lunev true.
Our syncing is working and we can contact the other domain users.
Do you manage both domains in Azure?
I configured this few months ago and it worked like it should