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Monitor adoption of new Outlook for Windows in your organization

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You might be interested in viewing new Outlook usage in your organization. We're working on adding usage reporting in the Microsoft 365 admin center to enable organizations to monitor usage and migration from classic to new Outlook for Windows. In the meantime, a workaround to offer these insights using a proxy in a form of sign-in activity is available through Microsoft Entra ID reporting.

View new Outlook sign-in activity with Microsoft Entra ID reporting

Microsoft Entra ID reporting can be filtered to the application ID in this dashboard. You must have a Microsoft Azure subscription and a Report reader role to view the report.

  1. Sign in to the Microsoft Entra admin center.

  2. Select Identity > Monitoring & health > Sign-in logs.

  3. Under Sign-in events, select User sign-ins (non-interactive).

  4. Select Add filters, and in the Pick a field window, select Application, and then select Apply.

  5. In the Application window, enter Microsoft Outlook and select Apply. The results show all login events for new Outlook.

  6. To ensure these entries are for new Outlook, select an entry from the list of results. In the Active Details: Sign-ins pop-out, scroll to find the Application ID. The Application ID showing 5d661950-3475-41cd-a2c3-d671a3162bc1 is the ID for new Outlook, and it confirms the user signed-in using new Outlook.

    Screenshot of Activity Details: Sign-ins window showing Application and Application ID entries.

Results are limited to 100,000 items. If the results exceed that, you can filter to a shorter time period using the Date filter.

Check what version of new Outlook is being used

To identify which versions of new Outlook users in your organization are running, do the following in Identity > Monitoring & health > Sign-in logs:

  1. Under Sign-in events, select User sign-ins (interactive).
  2. Select Add filters. In the Pick a field window select User, and then select Apply.
  3. In the User window, enter the name of the user you want to filter to, and select Apply. The returned results show all sign-in events for a particular user.
  4. Select a sign-in entry from the list of results. In Activity Details: Sign-ins, under the Basic info tab, scroll down to User agent.
  5. Note the version number used for OneOutlook. This number should match the user's new Outlook version. To see what version they're using, open new Outlook on the user's device and select Settings > General > About Outlook.