Know Your Zoom Meeting and Webinar IDs

IDs for Webinars and Meetings

A meeting ID is a number that identifies a meeting, whether it is an instant meeting or one that has been scheduled. A meeting ID is usually 10 or 11 digits in length. Meetings can be instant, scheduled, or recurring by using the 11-digit meeting number. For personal meeting IDs, you will use a 10-digit number. For meetings that are scheduled prior to April 12, 2020, the meeting number may have 9 digits.

Expiration rules for meeting IDs

In general

  • are that the instant meeting IDs expire once the instant meeting has ended.
  • Once you have scheduled a meeting, you are able to start that meeting anytime.
  • You cannot start a meeting if it does not appear in the list of meetings that are coming up or those that have already occurred in your portal.

Non-recurring scheduled meetings can be started only once.

  • In order to keep the meeting ID (also known as one-time meeting ID) active, it must be scheduled, non-recurring, and it must expire 30 days after it is scheduled. The meeting ID will remain valid for another 30 days if you restart the same meeting within those 30 days.
  • There is no rule that prohibits starting scheduled meetings earlier than the scheduled time as long as the meeting ID has not expired or been deleted.

Recurring meetings

  • When you do not start a recurring meeting occurrence for a period of 365 days, then your recurring meeting ID expires.
  • By resetting the 365 day timer, you will be able to re-use the meeting ID for future meetings.


Note: Whenever scheduling meetings through the Outlook or Google Calendar integration, especially recurring meetings, please check the Zoom web portal for the most accurate information on the scheduled date and time.


  • We delete webinars 90 days after the scheduled end time or the time when the last modification was made.

Personal Meeting ID (PMI)

  • If you do not start a Personal Meeting ID (PMI), it will also expire in 365 days, since it is essentially a recurring meeting that does not have a fixed time.
  • After you have deleted your Profile page or Personal Room settings page, a new PMI will automatically be assigned to you once you revisit these pages.

Expired or deleted meetings

  • When you are trying to start your meeting, you will most likely see an invalid meeting ID message. This is because the meeting ID has expired or has been removed. Ensure that the meeting ID shows up on the meetings page in the Zoom web portal in the role of the meeting host.
  • Deleted meetings can be recovered for one week after they have been deleted. In the case of a meeting recovery, invitations, links, and meeting IDs sent before the meeting was deleted will still work.
  • Recovering permanently deleted meetings from the trash can is not possible.

Locating the Meeting ID during a meeting

Windows | macOS | Linux

By clicking on the Meeting Information icon in the top-left corner of the meeting window, you can view the meeting information including the Meeting ID, Passcode, and Invite Link.

You can also view the Meeting ID while inviting new participants to the meeting.

Click here to view the Meeting ID.

    1. To view the Meeting ID, click on Participants.
    2. To invite a new participant, click on the Invite button.
      After clicking the Invite button, the meeting ID and the passcode will be displayed in a pop-up window. The Meeting ID and the passcode can both be found in the lower-right corner of the pop-up, and the Meeting ID can be found in the title of the pop-up.

Android | iOS

  • To display the meeting controls, tap on the screen in order to display them, then tap at the top to hide them.Note:  There is an 11-digit number in the URL of the invitation that is the meeting ID if participants are invited to the meeting.

Locating the meeting ID for a scheduled meeting

    • If you go to the Meetings page in the Zoom web portal, you will be able to view, start, or delete your upcoming or past meeting IDs.You can view, start, edit, or delete the IDs of all your upcoming meetings on the Zoom desktop client as well as on the Zoom mobile app. To do so, you simply need to click or tap on the Meeting tab.

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Frequently Asked Questions


We strive to make meetings collaborative events where all participants have the ability to share screens, turn their audio and video on, and see who else is in attendance so we can all work together. A webinar is designed so that the host as well as any designated panelists will be able to share their video, audio and screens during the meeting. Attendees can also be unmuted by the host at any time.
Zoom Meeting/Webinar IDs will be assigned to each Zoom meeting and will be a number with ten or eleven digits, depending on the size of the meeting.
Each webinar has its own 9-digit ID that can be used to sign in manually to the webinar, and it is unique to each session. This 9-digit webinar ID can only be obtained by contacting the webinar organizer (we cannot share this information with the public for security reasons), and the best way to do so is by contacting the webinar organizer directly.
When you schedule a webinar without requiring attendees to register or create a Zoom account in advance, attendees will be able to attend the webinar without needing to register or create an account, although they will need to enter their name and email address in order to join the webinar.
During the same time period, it is not possible to host both a meeting and a webinar. The users with scheduling privileges will be able to manage all meetings and act as alternative hosts for the meetings.
Click on the ‘Personal Meeting Room’ tab
  1. You will be able to see the ID for your Personal Meeting Room as soon as you click on it.
  2. Upon clicking the Join URL button, a new window will appear with the URL for the Personal Meeting Room. In order to invite students to a session that will be held in that room, you will use the URL (aka link) given above. To save the link for future announcements or invitations, simply cut and paste it to your clipboard.
Click on the Schedule option in the Zoom app once you have opened it. The option of Generate Automatically needs to be selected in the section of the Meeting ID section in the Schedule Meeting options. If you open Outlook, choose the Zoom group and then click on Schedule a Meeting. Ensure that Generate Automatically is selected in the Meeting ID section of the Schedule Meeting options as part of the Meeting ID selection process.
Join using the webinar ID (b)

Click on the Join button after entering the webinar ID and your email address. Using a mobile device, you will need to make sure that you have downloaded the iOS or Android app on your device, then enter the webinar ID when you are joining.

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