If a person has left a channel in the past, you need to be in their Telegram contacts to add them back.
They can still join via an invite link as long as they are not on the Removed Users list.
194
抱歉，此用户已决定退出此频道，您需要先在其 Telegram 联系人中才可将其添加回去。
请注意，只要他们不在“已封禁的用户”列表中，他们仍然可以通过频道的邀请链接加入。
86/194
Fair Dog,
Apr 29, 2023 at 14:12