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Change Optics Report released into Public Preview to showcase messages impacted by future changes

The_Exchange_Team's avatar
The_Exchange_Team
Platinum Contributor
Apr 20, 2026

Change Management is an important part of managing the improvements we make to our service that may sometimes disrupt our customers. The key is empowering customers to identify if they have messages that will be affected when we announce changes to the service. To that end, we’d like to announce the Public Preview for the Change Optics Report. It will be the central location for finding messages that could be affected by future changes to the service.

As we improve or identify issues in Exchange Online, there is now a report to point customers to when we announce changes that could affect the sending and delivery of certain messages. This report will showcase multiple scenarios of interest and importance to admins preparing for change. It displays a sample set of messages that have the characteristics that match those expected to be affected.

These example messages give admins the information necessary to launch investigations that highlight where actions are needed to avoid disruption to their organizations as changes arrive. The report can then be used to observe the progress made to reduce those messages to a point where the risk has been removed ahead of the related change.

Initial Scenarios

The report is being released with two scenarios already included.

Using the report

The report can be found in the Exchange Admin Center (https://admin.cloud.microsoft/exchange) under Reports > Mail flow > Change Optics Report

Change Optics Report: Use this report to view changes made to your Exchange Online configuration over time. You can filter by date range and change type to find specific changes.

The report is divided into a Summary page and Details page.

Summary Page

This provides a summary chart tracking the volume of messages flag by the various scenarios being tracked.  

Details Page

The Details page allows you to see example messages per scenario. The main message properties are available for use in an investigation, and the table can be exported. Message Trace can be used to retrieve any additional information needed about a message.

The scenario you are interested in can be selected from the dropdown menu.

Please provide any feedback in the Comments section. We will update this blog to announce when the report reaches GA.

Microsoft 365 Messaging Team

Published Apr 20, 2026
Version 1.0

2 Comments

  • GerodSerafin's avatar
    GerodSerafin
    Brass Contributor

    Just a thought.  It would be nice to me if I could see the status of the message delivery in the report.  Like, if the message was quarantined or delivered.  That would be nice to see since it would help me to focus on the scenarios where messages are being delivered for a valid reason so that I can reconfigure the sending application.  

  • nhawk258's avatar
    nhawk258
    Iron Contributor

    Love this idea. Do we need to do anything to sign up for this Preview feature before it hits GA? I see it in my tenant, but all the reports say "No data available for selected filters". I know we have DRS usage in our tenant, so that's not right.