Office 365 Planned Service Changes for 2021

*** The content below is no longer being updated ***

Please visit for the latest information regarding Planned Service Changes for Office 365.

The goal of this post is to compile all publicly announced Office 365 service changes for 2021, especially those that may require admin action, into a single source. These changes are listed below in chronological order, based on the “Action Required” or “Effective” date. Additional information and resources related to these changes are provided where applicable. Updates will be made to this post as new service changes are announced, or updates to announced changes are provided.

Note: All changes may not have been communicated to your tenant / environment.

Retirement of Skype for Business Online

Effective: July 31, 2021

Details: Skype for Business Online will be retired on July 31, 2021, and after that date the service will no longer be accessible.

Between now and then, current Skype for Business Online customers will experience no change in service, and they will be able to continue to add new users as needed. However, as of September 1, 2019 all new customers will onboard directly to Teams for chat, meetings and calling.

Note: The Skype Consumer service and Skype for Business Server are not affected by this announcement.

Additional Information:

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