MC518729, Office for the Web, Microsoft 365 Experts
From Microsoft Corporation
Technical Bulletin MC518729 · Published Feb 22, 2023
Message Summary
Updated February 27, 2023: We have updated the content below for clarity. Thank you for your patience.
This initial communication is to notify customers that starting in July 2023, Office for the web users, using some unsupported browsers will no longer be able to connect to the Microsoft 365 web applications mentioned in the Service column of this Message Center communication.
How this will affect your organization:
Microsoft recommends customers plan ahead to ensure all devices in their organization are using a Microsoft 365 supported browser, and that browsers have been updated to the latest version. Microsoft 365 supported browsers are documented here:
- Microsoft 365 Supported Browsers: Which browsers work with Microsoft 365 for the web and Microsoft 365 Add-ins
- Microsoft Teams Supported Browsers: Get clients for Microsoft Teams
- Outlook for the web Supported Browsers: Supported browsers for Outlook on the web and Outlook.com
Microsoft recommends using a software inventory & management tool (i.e. System Center) to identify the browsers that are installed in your organization along with browser versions, and to ensure all devices have been upgraded to the latest version of a supported browser.
Over time, and as Microsoft releases new features for the Office web apps, customers will need to use supported versions of supported browsers. Starting July-2023, it is more likely that customers using unsupported browsers, or unsupported versions of supported browsers will have a degraded experience or be unable to connect to the Microsoft 365 web apps mentioned in the products affected section.
What you need to do to prepare:
Before this change takes effect, please ensure that all devices within your organization which use the Microsoft 365 web applications mentioned in the Products section of this communication, have been updated to a supported version of a supported browser.
See the supported browsers links mentioned above.
