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
The client secret has expired.
In a web browser open the Azure Active Directory admin center