The unsubscribe link takes constituents from the Constituent Email Preference Page. This page will allow the constituent to unsubscribe from any Interest Opt-In associated with the Email Campaign for the email message. If there are no Interest Opt-Ins associated show the list of options.

To associate an Interest Opt-In with the Email Campaign:
  1. Navigate to Email > Email Campaigns > Campaigns tab
  2. Search for the Campaign and click Edit
  3. Select Interest Opt-In/Opt-Out
  4. Assign an Interest Category as desired