Thanks Dylan, I understand the A2P registration & 10DLC parts of that, but the other aspects still aren't clicking for me. Austin's DBR campaigns he posted (for dental and solar) send messages without any opt-out mechanisms. Unless GHL does it automatically, how is that legal? I'm also curious about the opt in part of things because he said when signing up for A2P you need to add the check box on lead forms, meaning they didn't have people opt in previously. Let me know if there's some way around this or if I'm just overthinking it all haha