To find your UC code to add your channel to your subscription, please follow the following steps:
Navigate to a video on your Youtube channel.
Right click on your channel name as seen in the image below and pick "copy link address”.
Step three: Paste the channel link into the “add youtube channel” field by using cmd+v (mac) or ctrl+v (PC).
That’s it! You have your UC code for your Youtube channel.
Please Note: You can also search for your channel by name but be sure to confirm it's your channel before connecting and proceeding.