GoHighLevel SMS Marketing: Best Practices for Replies, Compliance and Results

SMS has the highest open rate of any marketing channel — most messages are read within three minutes of receipt. GoHighLevel's LC Phone gives agencies native SMS capability built directly into the platform. Done correctly, it is the highest-engagement channel in your arsenal. Done incorrectly, it generates spam complaints, number suspensions, and legal exposure.

A2P 10DLC: The Compliance Foundation

A2P 10DLC is the US regulatory framework governing business SMS. Carriers require brand and campaign registration before allowing businesses to send SMS at meaningful volume. Without registration, your messages will be filtered by carriers, your sending limits will be severely throttled, and persistent non-compliance can result in permanent number suspension.

The registration steps inside GHL:

1. Register your brand — business entity information including EIN
2. Register your campaign — describe the types of messages you will send (marketing, transactional, etc.)
3. Associate the approved campaign with your LC Phone number
4. Wait for carrier approval — typically 1–4 weeks depending on business type

This is not optional and is not something to set up after you have already started sending. Complete it before your first business SMS leaves GHL.

Opt-In: The Legal Prerequisite

Before sending any SMS to a contact, you must have their explicit consent to receive text messages. An email opt-in does not cover SMS — they require separate, documented consent. Best practices:

• Include an unchecked SMS consent checkbox on opt-in forms: "I agree to receive SMS messages from [Business Name]. Msg & data rates may apply. Reply STOP to opt out."
• Document opt-in records — GHL tags contacts with consent status when properly configured
• Honor STOP replies immediately — GHL processes opt-outs automatically
• Never send SMS to contacts who opted in only to email communications

Writing SMS Messages That Get Replies

• Under 160 characters when possible: Messages over 160 characters split into multiple segments, increasing cost and reducing readability on some devices.
• Start with identification: "Hi [First Name], it's [Your Name] from [Business]" — especially for first contact. Recipients cannot see who a number belongs to without context.
• One action per message: One clear CTA. Multiple asks in a text message are confusing and dramatically reduce response rates.
• Conversational tone: "Hey [First Name], quick question…" consistently outperforms formal business language in reply rates across virtually every service business niche.
• Include opt-out in first contact: "Reply STOP to unsubscribe" on the first message in any sequence. GHL can automate this addition.

Send Timing: The Rules That Protect Your Reputation

SMS is more intrusive than email — messages arrive with a notification that interrupts whatever the recipient is doing. Strict timing discipline protects both compliance and brand perception:

• Send only between 9am and 8pm in the recipient's local timezone
• Avoid early Sunday morning sends for non-urgent messages
• For appointment reminders: 24 hours before and 2 hours before are the highest-impact windows
• For promotional campaigns: Tuesday through Thursday mid-morning consistently outperforms other windows

Automated Reply Handling

Configure keyword triggers that respond automatically to common inbound replies — turning your SMS campaigns from one-way broadcasts into lead qualification conversations:

• Reply "YES" → Apply tag "Interested" → Assign to team member → Send booking link
• Reply "MORE INFO" → Send a specific follow-up with details
• Reply "CALL ME" → Notify team member → Apply "Call Requested" tag
• Reply "STOP" → Process opt-out → Apply "SMS Opted Out" tag (GHL handles this automatically)