M365 Changelog: Increasing interactive meeting participants and chat from 300 to 1000

MC242587 – Updated March 19, 2021: We have updated the rollout timeline below. Thank you for your patience.

Currently, we allow only 300 users to be added to interactive meetings. We are going to increase the meeting participant and chat size from 300 to 1000.

This message is associated with Microsoft 365 Roadmap ID 65951 and 68844

When will this happen:

We will start rollout early April (previously end of March) and expect to complete by the end of April (previously mid-April).

How this will affect your organization:

Once this change has rolled out interactive meetings and chats will support 1000 participants.

What you need to do to prepare:

You may consider updating your training and documentation as appropriate.