Microsoft 365 Alert – Service Degradation – Exchange Online – Admins may be unable to run the Get-FederationInformation PowerShell cmdlet in Exchange Online – RESOLVED

Announcements Arpan Das

14/04/2025 08:51:00 AM

NHSmail Reference: INC46503873

Microsoft Reference: EX1052961

Issue Status: RESOLVED

Issue Description: Admins may be unable to run the Get-FederationInformation PowerShell cmdlet in Exchange Online.

More info: Affected admins may bypass the impact by running the Get-FederatedOrganizationIdentifier cmdlet.

Final Update: 20/04/2025 12:00:00 AM – Microsoft have validated through our service health telemetry that our code fix has completed its deployment and has alleviated impact as expected.

Scope of impact: Impact is specific to admins who are served through the affected infrastructure attempting to run the Get-FederationInformation PowerShell cmdlet in Exchange Online.

Root cause: A recent change to the API, intended to assign identities to users utilizing the API and assign a “user agent” to them, contains a bug which results in code failing to parse the user agent stream, resulting in an error.