from 12/21/2020 to 12/27/2020
7 Office 365 Message Center Items were changed and 9 Office 365 Message Center Items were added
Please note: Only common Message Center messages are in this list you should always check your Message Center for additional messages
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Changes

MC End Time changes
MC ID | MC Title | Old Value | New Value | MC Action required by |
---|---|---|---|---|
MC221223 | (Updated) Teams Meeting support for 20,000 attendees | 2021-01-31T08;00;00Z | 2021-01-06T08;00;00Z | N/A |
MC How Affect changes
MC ID | MC Title | Old Value | New Value | MC Action required by |
---|---|---|---|---|
MC221223 | (Updated) Teams Meeting support for 20,000 attendees | This feature will begin rolling out at the end of November (previously October) and expect to be complete by the beginning of December (previously the end of November). | We have delayed this rollout and will communicate via Message center when we are ready to proceed. | N/A |
MC IsMajorChange changes
MC ID | MC Title | Old Value | New Value | MC Action required by |
---|---|---|---|---|
MC230505 | Block Download Permissions for Teams Meeting Recordings on OneDrive and SharePoint | False | True | N/A |
MC230532 | We?re making changes to search in SharePoint Online | False | True | N/A |
MC230717 | Attack Simulator retirement | False | True | N/A |
MC231204 | Antimalware Scan Interface (AMSI) to include runtime inspection of Excel 4.0 macros (XLM) | False | True | 01/31/2021 |
MC Messages changes
MC ID | MC Title | Old Value | New Value | MC Action required by |
---|---|---|---|---|
MC221223 | (Updated) Teams Meeting support for 20,000 attendees | Updated November 06, 2020; To ensure the best possible experience for our users, we are delaying some of our deployments to reduce the amount of change flowing into the services. Please see the updated roll-out timeline below. Teams will soon support up to 20,000 meeting attendees as view-only participants for tenants with the Advanced Communications add-on. This message is associated with Microsoft 365 https://www.microsoft.com/microsoft-365/roadmap?filters=searchterms=65952 Roadmap ID 65952. |
Updated December 22, 2020; Based on learnings from our early rings, we have made the decision to make additional changes to the code before we proceed with the rollout. We will deliver a new Message center post once we re-start the rollout. Thank you for your patience. Teams will soon support up to 20,000 meeting attendees as view-only participants for tenants with the Advanced Communications add-on. This message is associated with Microsoft 365 https://www.microsoft.com/microsoft-365/roadmap?filters=searchterms=65952 Roadmap ID 65952. |
N/A |
MC230158 | (Updated) Deploy Project to multiple environments | Support for Production and Sandbox Dataverse (formerly the Common Data Service) environments will be rolling out soon to give you greater control over how Project is deployed in your organizations. You can leverage additional capabilities of the Dataverse platform to manage compliance, the application development lifecycle, and the security of Project. With the support for additional environments, you can; Create separate environments that correspond to specific teams or departments in your company. Deploy different customizations of Project for different sets of users. Use environments to separate Development, Testing, and Production. Archive snapshots of an environment. This message is associated with Microsoft 365 Roadmap ID https://www.microsoft.com/microsoft-365/roadmap?rtc=1%26filters=searchterms=67516 67516 |
Updated December 22, 2020; We have updated this post with additional details for clarity. Support for Production and Sandbox Dataverse (formerly the Common Data Service) environments will be rolling out soon to give you greater control over how Project is deployed in your organizations. You can leverage additional capabilities of the Dataverse platform to manage compliance, the application development lifecycle, and the security of Project. With the support for additional environments, you can; Create separate environments that correspond to specific teams or departments in your company. Deploy different customizations of Project for different sets of users. Use environments to separate Development, Testing, and Production. Archive snapshots of an environment. This message is associated with Microsoft 365 Roadmap ID https://www.microsoft.com/microsoft-365/roadmap?rtc=1%26filters=searchterms=67516 67516 |
N/A |
MC231108 | (Updated) Add a shared calendar to a Teams channel | With this feature, users can add the Channel calendar app to a Teams channel when using the Teams desktop app. This message is associated with Microsoft 365 Roadmap IDs https://www.microsoft.com/microsoft-365/roadmap?filters=searchterms=68910 68910 and https://www.microsoft.com/microsoft-365/roadmap?filters=searchterms=68911 68911. |
Updated December 22, 2020 for clarity.With this feature, users can add the Channel calendar app to a Teams channel when using the Teams desktop app. This message is associated with Microsoft 365 Roadmap IDs https://www.microsoft.com/microsoft-365/roadmap?filters=searchterms=68910 68910 and https://www.microsoft.com/microsoft-365/roadmap?filters=searchterms=68911 68911. |
N/A |
MC MessageTagNames changes
MC ID | MC Title | Old Value | New Value | MC Action required by |
---|---|---|---|---|
MC230158 | (Updated) Deploy Project to multiple environments | Admin impact,Feature update,User impact | Admin impact,Feature update,Updated message,User impact | N/A |
MC prepare changes
MC ID | MC Title | Old Value | New Value | MC Action required by |
---|---|---|---|---|
MC230158 | (Updated) Deploy Project to multiple environments | To support these new Project capabilities, we are also increasing the amount of Dataverse storage that is included across all Project SKUs.
Project P1 |
To support these new Project capabilities, we are also increasing the amount of Dataverse storage that is included across all Project SKUs.
Project P1 |
N/A |
MC231108 | (Updated) Add a shared calendar to a Teams channel | These feature makes it easy for members see to scheduled channel meetings. Select new tab+ at the top of the channel Find and add Channel calendar from available apps Teams automatically creates a new post when a channel meeting is created. It will appear in the activity feed and/or in a banner notification depending on users notification settings. Any user who has notifications turned off will see the event only when they open the channel calendar. Note; the channel calendar is available only to team members. Guest users cannot access the channel calendar app. |
This feature makes it easy for members to see scheduled channel meetings. Select new tab+ at the top of the channel Find and add Channel calendar from available apps Teams automatically creates a new post when a channel meeting is created. It will appear in the activity feed and/or in a banner notification depending on users notification settings. Any user who has notifications turned off will see the event only when they open the channel calendar. Note; the channel calendar is available only to team members. Guest users cannot access the channel calendar app. |
N/A |
MC Title changes
MC ID | MC Title | Old Value | New Value | MC Action required by |
---|---|---|---|---|
MC230158 | (Updated) Deploy Project to multiple environments | Deploy Project to multiple environments | (Updated) Deploy Project to multiple environments | N/A |
MC231108 | (Updated) Add a shared calendar to a Teams channel | Add a shared calendar to a Teams channel | (Updated) Add a shared calendar to a Teams channel | N/A |

CW52 New Office 365 Message Center items
MC ID | MC Title | MC Category | MC Workload | MC Major Change | MC Action required by |
---|---|---|---|---|---|
MC231108 | (Updated) Add a shared calendar to a Teams channel | Stay Informed | Microsoft Teams | False | N/A |
MC231135 | Updates available for Microsoft 365 Apps for Current Channel | Stay Informed | Microsoft 365 Apps | False | N/A |
MC231140 | New meeting options for managing large Teams meetings in Outlook for Windows | Stay Informed | Exchange Online, Microsoft Teams | True | N/A |
MC231184 | Power Platform - Update to Add-CustomConnectorToPolicy data loss prevention (DLP) PowerShell cmdlet | Stay Informed | Dynamics 365, Microsoft Power Automate, Power Apps | False | N/A |
MC231194 | Outlook on the web: Extension of suggested replies worldwide | Stay Informed | Exchange Online | False | N/A |
MC231204 | Antimalware Scan Interface (AMSI) to include runtime inspection of Excel 4.0 macros (XLM) | Stay Informed | Microsoft 365 suite | True | 01/31/2021 |
MC231205 | Introducing Approvals in Microsoft Teams | Stay Informed | Microsoft Teams | False | 01/12/2021 |
MC231356 | Microsoft 365 informed network routing (public preview) | Stay Informed | Microsoft 365 suite | False | N/A |
MC231359 | Branch office survivability for Teams customers that have configured voice resiliency | Stay Informed | Microsoft Teams | False | N/A |