some of my participant's haven't zoom app on their mobile or desktop what the setting should I do to let them join from browser because when they try to open invitation link message appear "cannot open the page because the address is invalid"
Log in to web account. On the left side , click Settings, click "In Meeting (Advanced)" and scroll to the end. A few up the the end is 'Show a “Join from your browser” link'. Toggle that option on.
Also, I found there is a "Web App" drop-down menu in the upper-right when logged in to the web portal. This is where I was finally able to join a meeting I created without the browser attempting to launch the application I had not installed.