Hi @SauPom ,
Thank you for posting in this community.
When a user is deleted and re-created with the same name, it can lead to issues. The new account have a different UPN value, causing conflicts. Even if a new account is created using the same UPN, the new account will be assigned a new ID value.After you delete a user, the account remains in a suspended state for 30 days. During that 30-day window, the user account can be restored, along with all its properties. After that 30-day window passes, the permanent deletion process is automatically started and can't be stopped. Neither you nor Microsoft customer support can restore a permanently deleted user.
If there’s a mismatched ID or you want to link the new UPN to the old OneDrive, create a support ticket through Microsoft 365 admin. Support engineers can assist further.
(Microsoft 365 admin center ->> Support ->> Help & support)
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