1. Go to Audience / Subscriber Collection Tools / Social Opt-in / Set it up
2. Click "Set up Social Opt-in"
3. Give it a name and click "Set up opt-in message"
4. Edit "Opt-in request message" then click "Set up message"
5. Edit "Reply message" then click "Activate Social Opt-in"
6. Copy the link, and paste it into HiTide Campaign set up