Houghton Mifflin Harcourt incident
HMH Rostering Service Interruption
Houghton Mifflin Harcourt experienced a notice incident on July 20, 2025 affecting Rostering and Rostering and 1 more component, lasting 53d 23h. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- identified Jul 18, 2025, 07:38 PM UTC
We have identified an issue impacting rostering for HMH solutions and Administrators are unable to roster. We are working to resolve this issue as quickly as possible, and updates will be provided here when information becomes available. Thank you for your patience during this disruption.
- identified Jul 19, 2025, 12:12 AM UTC
We have restored rostering for some organizations and our teams will continue working to restore all remaining organizations.
- identified Jul 19, 2025, 04:16 PM UTC
Work continues to restore rostering services. If your organization is impacted by this issue a message will display for Administrators when attempting to roster. If you see this message, please delay any rostering activities. If you do not see this message, you are able to roster without any issues.
- identified Jul 20, 2025, 05:25 PM UTC
Our teams are making progress restoring rostering service for all organizations.
- identified Jul 20, 2025, 09:43 PM UTC
Our teams have restored rostering service for the bulk of our users. However, some still remain unable to roster. If your organization is impacted, an alert will display for Administrators communicating that they should not attempt to roster. The next update is planned for Monday morning and we thank you for your patience as we work to restore service.
- identified Jul 21, 2025, 02:11 PM UTC
We continue working to restore rostering service for the remaining group of customers; however most organizations are eligible to roster as of yesterday. If your organization is impacted, an alert will display for Administrators communicating that they should not attempt to roster.
- identified Jul 22, 2025, 06:36 PM UTC
Our teams have made more progress in restoring rostering service, however some organizations remain unable to roster. Addressing this issue is our top priority and we thank you for your patience. If your Administrator receives a message indicating you are unable to roster, please do not attempt to roster. Once rostering service for your organization has been restored, this message will no longer appear.
- identified Jul 23, 2025, 05:08 PM UTC
We continue working to restore rostering service for all customers. If your Administrator receives a platform message indicating you are unable to roster, please do not attempt to roster. Once rostering service for your organization has been restored, this message will no longer appear.
- identified Jul 24, 2025, 10:02 PM UTC
We continue working to restore rostering service for all customers, thank you for your patience. If your Administrator receives a platform message indicating you are unable to roster, please do not attempt to roster. Once rostering service for your organization has been restored, this message will no longer appear.
- identified Jul 25, 2025, 04:36 PM UTC
We continue working to restore rostering service for all customers, thank you for your patience. If your Administrator receives a platform message indicating you are unable to roster, please do not attempt to roster. Once rostering service for your organization has been restored, this message will no longer appear.
- identified Jul 27, 2025, 09:18 PM UTC
We continue working to restore rostering service for all customers, thank you for your patience. If your Administrator receives a platform message indicating you are unable to roster, please do not attempt to roster. Once rostering service for your organization has been restored, this message will no longer appear.
- identified Jul 28, 2025, 03:52 PM UTC
We continue working to restore rostering service for all customers, thank you for your patience. If your Administrator receives a platform message indicating you are unable to roster, please do not attempt to roster. Once rostering service for your organization has been restored, this message will no longer appear.
- identified Aug 01, 2025, 06:30 PM UTC
We continue working to restore rostering service for all customers, thank you for your patience. If your Administrator receives a platform message indicating you are unable to roster, please do not attempt to roster. Once rostering service for your organization has been restored, this message will no longer appear.
- identified Aug 05, 2025, 08:29 PM UTC
Our teams have enabled the vast majority of customers to roster. The small remaining who are still unable to roster will see a message when they attempt to roster within the platform and we are working to restore these final customers as quickly as possible. Thank you for your patience as we work to resolve this issue.
- identified Aug 08, 2025, 07:53 PM UTC
Customers may experience delays in rostering today. We are working to address these delays as quickly as possible.
- identified Aug 08, 2025, 11:04 PM UTC
Rostering services are performing normally without delays. Thank you for your patience as we worked to address this issue.
- identified Aug 12, 2025, 08:10 PM UTC
Some customers may experience delays when using the HMH Rostering Service. Our teams are working to address these delays as quickly as possible. If you are attempting to use the HMH Rostering Service today and notice it is taking longer than expected, please allow the process to complete and do not resubmit as this will increase the delay. Thank you for your patience as we work to address this issue.
- identified Aug 14, 2025, 08:08 PM UTC
Some customers may experience delays when using the HMH Rostering Service. Our teams are working to address these delays as quickly as possible.
- identified Aug 21, 2025, 07:38 PM UTC
Our teams have implemented additional options for organizations to roster educators and students. As of this update the majority of organizations can roster successfully. Additionally, we have released changes that have mitigated the delays some administrators experienced last week. Thank you for your patience and your partnership during this issue.
- identified Sep 04, 2025, 01:09 PM UTC
Our teams continue working to enable rostering for a small group of remaining organizations. Some customers may experience errors when attempting to log in after successfully rostering and we are working to address those issues as quickly as possible. Thank you for your continued patience.
- monitoring Sep 04, 2025, 05:59 PM UTC
All organizations are now able to roster. Some customers may still experience errors when attempting to log in after rostering and we are working to address those issues as quickly as possible.
- resolved Sep 12, 2025, 05:08 PM UTC
This incident has been resolved.