Campign links are not generated until you send the campaign to the recipient this is why you have to send the campaign first before you can create a campaign link.
To get a campaign link follow these steps:-
1. Select "Promotion-> Campaign Statistics" on the top menu
2. Select the required Promo Campaign from the drop-down list or create a new campaign if necessary
3. In the list at the bottom of the page click the 'Campaign Link' link for the relevant DJ Recipient.
4. In the pop up click 'Copy to Clipboard' link and paste the URL into your email