ChannelInfo.AddUserLeftError

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
Applied
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.
194/194
Eager Cobra, May 18 at 13:47
Applied
If a person has left athe 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.
196/194
ICO, Jun 14 at 10:26