Cross tenant Microsoft 365 groups migration without data loss

Question

Hi All,

As part of my Cross Tenant migration / Consolidation project, I need some help and suggestion on how to perform the migration of Microsoft 365 groups to another Office 365 tenant without data loss.

So far I can only see this article which requires me to buy 3rd party software: https://learn.microsoft.com/en-us/exchange/mailbox-migration/migrate-mailboxes-across-tenants#scenario-migrate-using-a-third-party-migration-tool

What's the built-in method or the procedures from Microsoft without additional purchase?

Thank you in advance.

Answer 1

@EnterpriseArchitect ,

It has no official tool to realize Microsoft 365 tenant-to-tenant migrations now. The following image shows the migration details for each product:

Besides, here is an article which contains the tenant-to-tenant migration architecture model in PDF for reference.

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Answer 2

Microsoft doesn't offer anything in this space. Either go for a third-party tool, or be prepared to spend lot of time/effort for manual migration tasks.

Answer 3

Looks like Microsoft has a mailbox migration option
https://learn.microsoft.com/en-us/microsoft-365/enterprise/cross-tenant-mailbox-migration