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Titel
Microsoft 365 backups failing with Error from library: InvalidAuthenticationToken -
Beschreibung
Microsoft 365 backup jobs that have been completing successfully for a considerable amount of time suddenly failed with Error message from library - Check in More Info. When the error message is clicked on the job logs, additional information is displayed indicating that the problem is due to Exception occurred - Reason:Code: InvalidAuthenticationToken. -
Ursache
Unless the plugin configuration was changed, the most likely reason for the error will be an expired secret. -
Lösung
If the tenant information was recently modified, please re-enter the correct values. Otherwise, check if the used secret has expired:
➕ New client secret Description Expires Value 🛈 Secret ID ExpiredSecret 12/31/2020 p2x****************** 12345678-abcd-1234-abcd-0123456789ab 📄 🗑️ NewSecret 12/31/2021 aB1cD2eF3gH4iJ5kL6mN7oP8qR9sT0… 📄 98765432-fedc-9876-fedc-9876543210fe 📄 🗑️ - Log into Azure
- Select your organization Microsoft 365 App
- From the left navigation pane, select Certificates & Secrets
- Verify the expiration date for the used secret
If the certificate or secret has expired, create a new one and update the NetVault plugin for Microsoft 365. Enter the new Application Password. When creating a new secret, take not of its Value which is required to configure the plugin. The secret's Value can't be copied again if the webpage is reloaded.
