Works for normal channel ID, but when i input Bot's channel ID, it is not working

[noblesse11]

Hi, any reason why when i input bot's id as the input, whatever message published by the bot will not be forwarded to the output channel?

same problem.

telethon.errors.rpcerrorlist.ChannelInvalidError: Invalid channel object. Make sure to pass the right types, for instance making sure that the request is designed for channels or otherwise look for a different one more suited (caused by ForwardMessagesRequest)

telethon is lastest version.