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Veeam Backup for Microsoft 365: The provided client secret keys are expired.

Veeam Backup for Microsoft 365: The provided client secret keys are expired.

KB ID:	4152
Product:	Veeam Backup for Microsoft Office 365 \| 3.0 \| 4.0 \| 5.0 Veeam Backup for Microsoft 365 \| 6.0 \| 7.0
Published:	2021-04-26
Last Modified:	2022-04-11

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Challenge

Veeam Backup for Microsoft 365 displays one of the following errors:

The provided client secret keys are expired.

Error: AADSTS7000222: The provided client secret keys are expired. Visit the Azure Portal to create new keys for your app, or consider using certificate credentials for added security: https://docs.microsoft.com/azure/active-directory/develop/active-directory-certificate-credentials

Cause

The client secret has expired.

Solution

In a web browser open the Azure Active Directory admin center
Click on "App registrations"
Find the expired App in use by VBO365, note the expired status and the AppID
(The AppID in use can be determined by Editing the Organization in Veeam Backup for Microsoft 365)
Click on the App "Display Name"
Click on the error about the secret being expired to create a new secret
The web page will switch to the [Certificates & secrets] section
Listed on this page will be the expired Client secret
(note that you can delete it)
Click [New client secret]
(Note that you can set the secret to never expire)
After creating the new Client Secret update the Organization settings in Veeam Backup for Microsoft 365.

Note: if you do not see the app in "Owned applications", check in "All applications"

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