Outage in Cisco Duo

Entra ID Sync Issue Affecting Certain European Deployments

Resolved Minor
September 29, 2025 - Started 5 days ago - Lasted about 7 hours
Official incident page

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Outage Details

We are current investigating issue where custom attributes are not being synced from Entra ID to Duo. Entra ID sync is working as expected with standard attributes. Please refer to the status page for further updates.
Latest Updates ( sorted recent to last )
RESOLVED 4 days ago - at 09/29/2025 04:52PM

This incident has been resolved.

IDENTIFIED 4 days ago - at 09/29/2025 04:16PM

We have identified the issue causing custom attributes to not sync from Entra ID to Duo and are working with the vendor to resolve it.

We will work with affected customers while a fix is developed and deployed. Please reach out to support@duo.com or give us a call at the number listed for your region on our Support Page, https://duo.com/support. We will close this incident on the Status Page shortly.

Please pause your Entra ID sync if you are using any custom attributes as sync attributes, and, if possible, do not run a full manual sync until the issue is resolved. As a workaround, an administrator can sync individual users by following the instructions in our guide below:
https://duo.com/docs/azuresync#sync-individual-users-from-the-duo-admin-panel

INVESTIGATING 4 days ago - at 09/29/2025 10:32AM

We are continuing to investigate this.

Please pause your Entra ID sync if you are using any custom attributes as sync attributes, and, if possible, do not run a full manual sync until the issue is resolved. As a workaround, an admin can sync individual users by following the instructions in our guide below:
https://duo.com/docs/azuresync#sync-individual-users-from-the-duo-admin-panel

INVESTIGATING 5 days ago - at 09/29/2025 09:46AM

We are current investigating issue where custom attributes are not being synced from Entra ID to Duo. Entra ID sync is working as expected with standard attributes.

Please refer to the status page for further updates.

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