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First make sure your M365 tenant is linked to an Azure subscription. If none exists, sign in to the Azure portal with a global admin account and create a subscription.
In the Microsoft 365 admin center, go to Settings > Microsoft 365 Backup and set up billing by selecting your Azure subscription, region, and resource group. This is required to use Microsoft 365 Backup.
Next, in the Azure portal, search for Recovery Services vaults
and create a new vault. Specify the vault name, region, and resource group.
After setup, enable backup in the Microsoft 365 admin center and configure your backup policies.
You must have global admin rights in Microsoft 365 and owner or contributor rights in Azure to complete this process. There's no need to create a new Entra ID tenant—your existing M365 directory is sufficient.
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