...
Copy the URL of the breakout room you’re in.
Send the link to the person you want to invite. You can do this by email or a Direct message on the site.
To enter the meeting, they need to be registered and log in logged on to the site.
...
If the meeting is scheduled for the future:
Go to your Schedule in the navigation bar. Click the meeting to go to the meeting information details page.
Click Invite others.
Type someone’s name in the Search bar.
Click the circle next to their name to invite them. A Checkmark appears.
Search for and invite more people. The total number of people you invite appears at the top of the pop-up windowadd appears in a counter. For example,
Invite + 2.Click Invite.
People Everyone you invite get gets a notification by email and directly on the site. They need to click Attend to accept the invite it and add the meeting to their schedule.
When they accept, they’ll show up as an attendee they’re added to the list of attendees on the meeting information details page.
...