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21 changes: 21 additions & 0 deletions microsoft-365/enterprise/cross-tenant-onedrive-migration-step5.md
Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,27 @@ This is Step 5 in a solution designed to complete a Cross-tenant OneDrive migrat
- Step 6: [Start a Cross-tenant OneDrive migration](cross-tenant-onedrive-migration-step6.md)
- Step 7: [Post migration steps](cross-tenant-onedrive-migration-step7.md)

## Verify cross-tenant compatibility status

Before starting any cross-tenant migrations, make sure that both SharePoint database schemas are up to date and compatible between source and target.

To perform this check, run the below cmdlet on your Source tenant.

```powershell
Get-SPOCrossTenantCompatibilityStatus -PartnerCrossTenantHostURL [Target tenant hostname]

Get-SPOCrossTenantCompatibilityStatus -PartnerCrossTenantHostURL https://m365x12395529-my.sharepoint.com
```

- If the tenant status shows as **Compatible** or **Warning**, you can then proceed with the next step of starting cross-tenant migrations.
- If the tenant status shows as **Incompatible**, your tenants will need to be patched/updated to ensure compatibility.

|Status|Can proceed with migration|
|---|---|
|Compatible|Yes|
|Warning|Yes|
|Incompatible|No|

## Create the identity mapping file

In this step of the cross-tenant migration process, you're going to create a single CSV (comma separated values) file that contains the mapping of the users and groups on the source tenant to their corresponding users and groups on the target tenant.
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