Adobe Marketo Engage: Availability issue

Update timeline

1. monitoring Sep 16, 2026, 05:27 PM UTC

   We’re investigating an availability issue.

2. monitoring Sep 16, 2026, 05:56 PM UTC

   Adobe Marketo Engage customers globally may be experiencing "401" authentication error messages. We are actively investigating this issue now and will post updates within one hour or as soon as new information becomes available. If you have any questions, please contact Marketo Engage Support via the Support Portal in Admin Console.

3. monitoring Sep 16, 2026, 06:35 PM UTC

   A subset of Adobe Marketo Engage customers globally may be experiencing a service disruption.What has changed: The Adobe engineering team's initial mitigation actions have been successful, and we are currently working to validate endpoint configurations and fully restore service. Customer impact: Customers may experience "401" authentication errors.We will post updates within one hour or as soon as new information is available. If you have any questions, please contact Marketo Engage Support via the Support Portal in Admin Console.

4. monitoring Sep 16, 2026, 08:25 PM UTC

   A subset of Adobe Marketo Engage customers globally may be experiencing a service disruption.What has changed: The Adobe engineering team has applied mitigation steps for a subset of impacted customers and are continuing to validate endpoint configurations for other potentially affected customers.Customer impact: Customers may experience "401" authentication errors being returned for REST API calls.We will post updates within one hour or as soon as new information is available. If you have any questions, please contact Marketo Engage Support via the Support Portal in Admin Console.

5. monitoring Sep 16, 2026, 09:06 PM UTC

   A subset of Adobe Marketo Engage customers globally may have experienced a service disruption.Resolution summary: This issue has been resolved, and all systems are fully operational. The Adobe engineering team corrected affected routing configuration for impacted customer endpoints and validated that OAuth token generation returned to expected behavior. Additional validation confirmed that most remaining authentication alerts were unrelated to active service impact.Customer impact: Customers may have experienced “401” authentication errors being returned for REST API calls.If you are still experiencing symptoms, please contact Marketo Engage Support via the Support portal in Admin Console for further assistance. The information on this page reflects our understanding of the incident and impact at the time of the update.

6. resolved Sep 16, 2026, 09:40 PM UTC

   We’ve resolved the availability issue.

7. resolved Sep 23, 2026, 06:11 PM UTC

   The root cause analysis has been completed, and the Customer Statement (CFS) is now available. You can review the report here.