To add someone outside the contacts list, you can access the invite links. However, public channels will only have the unique link. Admins and subscribers cannot create new sublinks.
As an admin of a private channel, you can create new invite links, which you can optionally revoke and reset.
To add someone outside the contacts list, you can access the invite links. However, public channels will only have the unique link. Admins and subscribers cannot create new sublinks.
As an admin of a private channel, you can create new invite links, which you can optionally revoke and reset.
If they need to add someone outside their contacts list, they can access the channel link from the chat info page and share it.