SMS Marketing Fundamentals
SMS marketing enables direct, immediate communication with customers through mobile messaging. Strategic SMS programs achieve exceptional engagement rates while complementing other channels.
The SMS Opportunity
SMS messages achieve near-universal open rates, typically above 95%. Messages reach customers immediately on devices they carry constantly. SMS provides unmatched reach and immediacy for marketing messages.
SMS Versus Email
SMS and email serve different purposes with different strengths. SMS excels at time-sensitive, brief communications while email handles detailed content. Both channels complement each other effectively.
Character Limit Considerations
SMS messages are limited to 160 characters per segment. Concise, focused messaging is essential. Longer messages send as multiple segments with associated costs.
Customer Preferences
Customers have strong preferences about SMS communication. Permission, relevance, and frequency must be carefully managed. Respecting preferences protects subscriber relationships.
Cost Structure Understanding
SMS incurs per-message costs unlike email's largely fixed costs. Cost structure affects strategy including volume and targeting decisions. Calculate ROI accounting for message costs through [digital marketing](/services/digital-marketing) economics.
Compliance and Consent
SMS marketing faces strict regulations requiring careful compliance management.
TCPA Requirements
The Telephone Consumer Protection Act strictly regulates SMS marketing in the US. Express written consent is required before sending marketing messages. TCPA violations carry significant per-message penalties.
Consent Collection Best Practices
Collect SMS consent explicitly and separately from email consent. Document consent including timestamp, method, and scope. Clear consent language describes what subscribers will receive.
Double Opt-In Considerations
Double opt-in adds confirmation step verifying subscriber intent. While adding friction, double opt-in provides stronger consent evidence. Consider double opt-in especially for higher-risk programs.
Opt-Out Processing
Process opt-out requests immediately and completely. Standard opt-out keywords like STOP must be honored. Confirm opt-out processing to subscribers.
Quiet Hours and Frequency Limits
Respect quiet hours avoiding early morning and late night messages. Regulatory guidance and customer preferences inform timing restrictions. Frequency limits prevent subscriber annoyance and opt-outs.
Campaign Strategy Development
Develop SMS campaigns that leverage channel strengths effectively.
Time-Sensitive Messages
SMS excels for time-sensitive communications like flash sales, appointment reminders, and delivery notifications. Immediacy is SMS's primary strength. Reserve SMS for genuinely time-sensitive content.
Transactional SMS
Order confirmations, shipping updates, and appointment reminders perform well via SMS. Transactional messages provide valued service. Transactional SMS often has different regulatory treatment.
Promotional SMS
Promotional SMS drives sales through exclusive offers and limited-time promotions. Promotional messages require clear consent and provide opt-out. Balance promotion against frequency tolerance.
Conversational SMS
Two-way SMS enables customer conversations and support. Conversational approaches increase engagement and satisfaction. Implement response handling for conversational programs.
Personalization Strategies
Personalize SMS messages using subscriber data. Name, purchase history, and location enable relevant messaging. Personalization improves engagement while demonstrating value.
Optimization and Integration
Optimize SMS performance and integrate with broader marketing programs.
Message Optimization
Test message content, timing, and offers for performance improvement. Concise messaging requires careful word choice. Optimization improves response rates and ROI.
Timing Optimization
Test send timing to identify when subscribers respond best. Optimal timing varies by audience and message type. Timezone awareness ensures appropriate delivery times.
Segmentation Strategies
Segment SMS subscribers for targeted, relevant messaging. Not all subscribers should receive all messages. Segmentation improves relevance and reduces fatigue.
Email and SMS Coordination
Coordinate SMS with email for multi-channel campaigns. Cross-channel coordination prevents overwhelming subscribers. Use each channel for its strengths.
Performance Measurement
Track delivery rates, response rates, conversion rates, and revenue attribution. SMS metrics inform optimization decisions. Connect SMS performance to business outcomes through [marketing services](/solutions/marketing-services).