HMH Platform Status

All Systems Operational

About This Site

Welcome to the HMH Platform Status Center. We continually monitor the availability and performance of our products. Interruptions to service will be posted here. We are committed to providing you with transparent, specific, and timely information. Please bookmark this page or subscribe to receive notification of a service issue.

If you are having problems with an HMH platform and there are no active incidents posted here, please try clearing your cache. If the issue persists, contact HMH Technical Support.

HMH Ed Operational

Content and Resources Operational

Assignments Operational

Reporting Operational

Rostering Operational

ThinkCentral Operational

Content and Resources Operational

Assignments Operational

Reporting Operational

Rostering Operational

Holt McDougal Online Operational

Content and Resources Operational

Assignments Operational

Reporting Operational

Rostering Operational

Operational

Degraded Performance

Partial Outage

Major Outage

Maintenance

Past Incidents

Oct 16, 2025

No incidents reported today.

Oct 15, 2025

No incidents reported.

Oct 14, 2025

No incidents reported.

Oct 13, 2025

Delay in Manual Assessment Scoring on Ed

Resolved - The incident is resolved. All impacted assessments are now available on Ed. Thank you again for your patience.
Oct 13, 11:14 EDT

Update - Processing of impacted assessments continues successfully and as they are processed will appear on Ed. These activities will continue over the weekend and we will provide another update on Monday.
Oct 10, 12:09 EDT

Update - Processing of impacted assessments continues successfully and as they are processed will appear on Ed. Thank you for your patience.
Oct 9, 13:20 EDT

Update - HMH Engineering teams continue to restore delayed assessments and as this work continues, impacted assessments will be available for scoring on Ed. If an assessment is not yet visible on Ed, please check again later. And as a reminder, there is no loss of assessment data. We will provide a daily update on this page until the issue is resolved.
Oct 8, 11:57 EDT

Update - We continue working to address the delays for manual scoring and will provide another update once more information is available.
Oct 7, 16:29 EDT

Update - We continue working to address the delays for manual scoring and expect to provide an update tomorrow morning at 9:00AM ET.
Oct 6, 16:04 EDT

Update - Our teams continue working to address the delays for manual scoring as our top priority. Thank you for your continued patience.
Oct 6, 14:18 EDT

Identified - We have identified an issue impacting manual scoring. Some completed assessments are delayed, and teachers are unable to manually score items. We are working to address this issue as quickly as possible.
Oct 6, 12:16 EDT

Investigating - Please be advised that some teachers in Ed may experience a delay in the ability to manually score an assessment item. No data has been lost, only the ability to manually score by the teacher has been delayed.

We are investigating the issue and updates will be provided here when more information is available.
Oct 6, 09:55 EDT

Oct 12, 2025

No incidents reported.

Oct 11, 2025

No incidents reported.

Oct 10, 2025

Oct 9, 2025

Oct 8, 2025

Oct 7, 2025

Oct 6, 2025

Oct 5, 2025

No incidents reported.

Oct 4, 2025

No incidents reported.

Oct 3, 2025

No incidents reported.

Oct 2, 2025

No incidents reported.