https://learn.microsoft.com/en-us/microsoft-365/enterprise/cross-tenant-mailbox-migration?view=o365-worldwide

Teams Meetings need to be recreated

Dont use Sharegate ( Avepoint )

https://pariswells.com/blog/research/how-to-find-out-what-tenant-teams-meetings-are-from-after-migration

https://github.com/smcavinue/AdminSeanMc/tree/master/Tenant%20Migration%20Assessment

https://practical365.com/office-365-migration-plan-assessment/

https://practical365.com/enhancing-your-tenant-to-tenant-migration-powershell-script/?utm_content=217932429&utm_medium=social&utm_source=linkedin&hss_channel=lcp-2193275