Slido is available in Webex Meetings and Webex Webinars. You use can Slido in Webex Meetings on version 41.6 and later sites, and in Webex Webinars on version version 41.9 and later sites. Slido polls and Q&A in webinars are available for up to 10,000 attendees, while quizzes are available for up to 5,000 participants.

Known issues

  • Microsoft Edge WebView2 is required, if using Windows.

    Otherwise, Slido prompts you to install it on first use and WebView2 downloads from Microsoft. Download and install can take several minutes, which could impact your meeting experience.

  • Polls and Q&A are included in meeting recordings only if Slido Present mode is screen-shared from a web browser or through Google Slides or PowerPoint integrations.

  • The color theme in Slido doesn't match the color theme in Meetings.

    Workaround: There’s an option for hosts to customize the colors for participants in Slido.


  • Webex users must be created in or linked to a Control Hub organization.

    Slido isn’t available to meeting hosts in Site Admin managed sites, unless the site and users are linked to Control Hub and they use the same method of Webex authentication as Control Hub-managed users.

  • Slido isn't supported in meetings from a space in the Webex App. Hosts can run Slido from the Meetings desktop app or from full-featured meetings in Webex App. Hosts can also go to and prepare and run Slido from there.

    Participants can use Slido on the Meetings desktop, mobile, personal devices and web apps.

  • Slido isn't supported in Webex Events classic and in Webcast view for attendees in Webex Webinars.

  • If you make someone else the host during a meeting, the new host can't create and run polls and Q&A in Slido if the host already opened Slido via Apps during the meeting. The new host can request access to the active Slido as a collaborator unless they're from a different Webex organization.

    Workaround: Go to and add collaborators to help you manage Slido in Webex Meetings.

  • Slido isn't supported in breakout sessions.

  • Webex room devices and desk devices for hosts aren't supported.

  • Slido isn't supported on Webex for Government sites.

  • Slido functionality isn’t available in end-to-end encrypted meetings.

  • Slido isn't supported if you use the Meetings web app in Internet Explorer 11.