I schedule a meeting for tomorrow, for example. I copy the link and send it to the individual I am asking to join. The invitee says they cannot join as when they click on the link, they get a message that says the user is busy with another meeting. Would appreciate some help.
If you are in another meeting at the time the other user clicks on the link for your other meeting (even if it is scheduled in the future) they will receive a message saying you are busy in another meeting - because you are.