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mccalam's avatar
mccalam
Copper Contributor
Mar 27, 2025

Webinar - Attendees Joined 3 Different Calls

Hello!

I facilitate a monthly call and I've been instructed to schedule the call through my personal calendar as a TEAMS Webinar. The invitation is sent to 1500 colleagues. IT instructed me to send out three different Outlook invites due to the maximum limit of 500 recipients. I then take the webinar call details and I copy the call in details into the three separate outlook invites. 

This past week when colleagues started to join the call some called into the January meeting/started a chat, some called into the February meeting/started a chat and come called into the correct meeting. Those that dialed into the incorrect calls (January and February) were unable to join the correct March meeting. Even after I copied the event link in the Webinar invite they were unable to join. It asked them to register for the event, but then gave them an error. 

Even stranger, I set up the Outlook invite by business unit, the incorrect meeting chats for January and February each had colleagues from all three business units. 

Can you confirm, is the webinar the best application and is it true that I must set up the webinar in my personal email and copy it over to an outlook invite? In my research, it looks like the limit for a meeting invite is 5000 in outlook, not 500. Can you also confirm?

4 Replies

  • Like AndresGorzelany says, 1000 participants is a maximum for a webinar.

    And if you make a webinar, you can share the link to the registration pagina.
    If you do that, people are only able to registrate for the webinar event you created.

    • mccalam's avatar
      mccalam
      Copper Contributor

      If I use a regular TEAMs meeting, can I invite more than 1000 people? All we need is chat availability. 

  • Hello,

    Webinar support a maximum of 1000 participants.

    If you need more than 1000, you should analyze if Town Halls would be a better option.

     

    https://learn.microsoft.com/en-us/microsoftteams/overview-meetings-webinars-town-halls

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