Promo Unit Custom Message
Custom Message: In the "Custom Message" field you can add an 80 character long message. this will be shown in your Promo Unit to listeners when they hear your music. You can preview your promo unit and Custom Message from your Campaign Settings menu, Promo Unit page by clicking “preview unit”. Here is an example of a custom message appearing in your artist Promo Unit (the message is underlined in red)
Custom Message URL (link): The message you'll write in the Custom Message field will be clickable, and you can decide where to direct clicks. If you Custom Message says "Like our band on Facebook" it would make sense to put a link to your Facebook page in the Custom Message URL field.