Instagram’s “Invite Link” feature gives group chat administrators an easy way to invite new users to join their group chats on the photo- and video-sharing platform. When a group chat administrator turns on the “Invite Link” feature for a group chat, the Instagram application will generate a link they can share with other users to…

(SOURCE) https://www.adweek.com/media/instagram-how-to-use-group-invite-links/