Setting up future meetings with participants using Teams calendar or Outlook integration
Yes. With Microsoft 365 Enterprise plans, a standard Teams meeting supports up to 1,000 interactive participants. Since the planned meeting is about 600 participants, it fits within the normal Teams meeting limit.
For larger meetings:
- After around 900 attendees enter, additional attendees can join with a view-only experience.
- The maximum is 10,000 attendees in a Teams meeting when view-only is enabled.
- If view-only is turned off, attendance is limited to the first 1,000 attendees.
There is no documented process here to apply for an extension for a standard Teams meeting beyond those limits. If more than the standard meeting capacity is needed, Microsoft recommends using Teams events options such as town halls or other event experiences designed for larger audiences.
Also note:
- If breakout rooms are used, the meeting is limited to 300 attendees.
- If the meeting is created from Outlook as a Teams meeting, the invite recipient limit is 750. Using a distribution list can help invite a large number of attendees.