Error when posting to Discord

I’ve set up the Discord integration and added the bot to a channel on my Discord, I’ve copied that channel’s ID to the notification service call in HA but every time I do I get an error in the logs:

 Channel not found for ID: XXXXXXXXXXXXXXX 

That ID is not the ID of the channel that the bot has joined, or the same as the ID I entered into the notification service call either. I assume it’s either the ID of the bot or the server, even if I try a different channel, that ID stays the same …