How can I invite a guest participant to my class?

You can also share the Zoom Meeting link you have created on LMS with external participants, as described here.

External participants will first come to the "Waiting Room" when they open the event. Only after you click on Admit and accept the attendee, they can join the class.

After the Zoom Meeting starts, you can use the steps below to share the link.

You can click on the Zoom Meeting Information button in the upper left corner, access the "invite link" and "passcode", then copy the link from the program you want to forward and add new participants to your course.