Can Microsoft Purview Information Protection Scanner Use a gMSA?
Question details
Determine whether the Microsoft Purview Information Protection Scanner supports group Managed Service Accounts (gMSA) and how password rotation affects tokens.
- Product
- Microsoft Purview Information Protection
- Device & OS
- not provided
- Scenario
- Configuring service accounts for the Microsoft Purview Information Protection Scanner while attempting to adhere to strict security policies that require password rotation.
- Observed behavior
- Microsoft documentation recommends a standalone service account with a non-expiring password, leaving gMSA compatibility and token behavior after password rotation unclear.
Before modifying your Purview Information Protection scanner configuration, ensure you have administrative access to your Microsoft 365 environment and a backup of your current Active Directory service account settings.
Consult Microsoft Support for gMSA Compatibility
Because Microsoft's documentation officially recommends a standalone service account with a non-expiring password, you must verify gMSA support and token rotation behavior directly with Microsoft Support.
The Purview scanner relies on the Set-AIPAuthentication cmdlet to generate an authentication token. Because token validity and renewal processes after automatic password rotation are highly deployment-specific, applying a gMSA without official guidance may cause unexpected authentication failures.
Log in to your Microsoft 365 Admin Center using an account with Global Administrator or Support Administrator privileges.
Navigate to the Support section and create a new service request. Specifically ask the Purview specialist about gMSA compatibility and token behavior after password rotation for the Information Protection Scanner.
If Microsoft provides a workaround for using a gMSA, configure it in a dedicated test environment first. Monitor the token duration and verify that the scanner continues to function after the gMSA automatically rotates its password.
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Frequently Asked Questions
What is the recommended service account type for the Purview Information Protection Scanner?
Microsoft officially recommends using a standalone Active Directory service account with the password set to never expire to ensure continuous operation of the scanner.
Why might a gMSA cause issues with the Purview scanner?
Group Managed Service Accounts (gMSA) automatically rotate their passwords. This automatic rotation can disrupt the Set-AIPAuthentication token validity, potentially leading to scanner authentication failures if the token cannot be automatically refreshed.
How do I authenticate the Purview Information Protection scanner?
The scanner is authenticated using a Microsoft Entra ID (formerly Azure AD) app registration. You must run the Set-AIPAuthentication cmdlet to generate the necessary token for the service account.
