O365 migration from global to china

robin yin 1 Reputation point

As security & regulatory requirements, we need to migrate O365 from global to china .

I have a tenant on o365 global , and assigned domain "domain.com".

Now , i had created an tenant on o365 china , removed domain "domain.com" from o365 global , created domain "domain.com" on o365 china (21Vianet) .

Health check status is OK.

I succeed created user on o365 china (21Vianet) , web-login worked , but failed "join this device to Azure Active Dirctory".

Error Alert :
This username may be incorrect. Make sure you typed it correctly. Otherwise, contact your admin or select 'Back' to set up Windows with your Microsoft account.

Appreciate any suggestion.

Microsoft 365 Publishing
Microsoft 365 Publishing
Microsoft 365: Formerly Office 365, is a line of subscription services offered by Microsoft which adds to and includes the Microsoft Office product line. Publishing: The process of preparing, producing, and releasing content for distribution or sale.
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