MC220545 – (Updated) Improvements to optional diagnostic data collection to better diagnose issues in Office

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check before: 2020-08-25


Office app, OneNote, Outlook, Project, Visio


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Android, iOS, Mac, Windows Desktop



Updated August 28, 2020: We've updated this post to ensure that it is appropriately visible for organizations. There is no change to the content. When a user runs an Office app, such as Word or Excel, diagnostic information is collected and saved to log files on the user?s device. These log files contain information about the processes and components running in the application, and can help detect, diagnose, and fix issues and help make improvements to Office. This information is very similar to optional diagnostic data that may already be collected subject to applicable privacy settings, but is more detailed and helps provide more context about technical issues that might occur when using Office apps. We want to let you know that these log files could be sent to Microsoft only if you have chosen to enable the collection and processing of optional diagnostic data by Microsoft. Note that even when you?ve enabled the processing of optional diagnostic data, Microsoft may not always collect these log files. We would process these files only in those situations where we think the additional information could be useful in resolving an issue. Key points: Timing: If you have enabled the collection and processing of optional diagnostic data, it will begin in mid September. Controls: Admin - Policy setting for diagnostic data Action: review and assess impact The change will initially apply to Office on devices running Windows, beginning with Version 2008 of Microsoft 365 Apps in Current Channel. Log files could be sent for the following Office apps: Excel OneNote PowerPoint Word Log files could also be sent for Version 2008 and later of Project and Visio. In the coming months, this change will also apply to Outlook as well as Office running on Mac, iOS, and Android devices. For the latest information about which versions of Office and which operating systems this change applies to, see Overview of diagnostic log files for Office

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Change type:
Admin impact, Feature update

task type:
Awareness Plan For Change

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