SMS marketing for small business

Unlike email, SMS has no true open tracking — but industry estimates, popularized by Gartner's digital-markets research (2016), put text "open" rates around 98%, reflecting a simple reality: nearly every delivered text gets seen, usually within minutes. Compare that with email, where a 25% open rate is a good day, or social posts that reach a fraction of your followers. For a small business, SMS is the one channel where your message reliably lands in front of the customer.

This guide covers the four things you need to get right: building a list legally, staying compliant, writing texts that sell, and measuring what works.

Step 1: Build a list you're allowed to text

You cannot buy an SMS list or import your contacts book — texting people without consent violates the TCPA and can cost $500–$1,500 per message in penalties. Every subscriber must opt in.

The good news: opt-in mechanics are simple and they work anywhere your customers already are:

• A keyword ("Text SAVE10 to 555-0100") on your counter sign, receipts, and radio spots — see our full text-to-join guide.
• A QR code on tables, posters, and packaging.
• A web form on your site, offering a first-purchase discount.

Give people a reason to join (a discount, early access, useful updates) and tell them what to expect ("up to 4 texts a month").

Step 2: Stay compliant without thinking about it

Three rules cover most of it:

1. Confirm the opt-in with your business name, message frequency, and "Reply STOP to unsubscribe."
2. Honor STOP instantly. A platform should do this automatically — no human in the loop.
3. Register your number with the carriers (the 10DLC process — a one-time task).

Pick a platform that handles all three by default, and compliance stops being a project.

Step 3: Write texts that sell

A text is not a small email. You have about 160 characters and one glance of attention. The structure that works:

Who you are + the offer + the deadline + the link + the out.

Three templates you can steal:

Flash sale: "Riley's Coffee: 20% off everything today only. Show this text at the register or order ahead: [link] — Reply STOP to opt out"

Win-back: "We miss you at Riley's! Here's a free pastry with your next coffee, this week only: [link] — Reply STOP to opt out"

Appointment reminder: "Reminder: your appointment is tomorrow at 2pm. Reply C to confirm or R to reschedule. — Riley's Salon"

Notes on style: lead with your name (an unknown number gets ignored), one offer per text, a real deadline, and never two texts where one will do. Two to four messages a month is the sweet spot for most small businesses.

Step 4: Measure revenue, not vanity

Three numbers tell you almost everything:

• Delivery rate — below ~95%, you have a number registration or list-quality problem.
• Reply and click rate — is anyone acting on the message?
• Revenue per send — track it with unique discount codes or tracked links.

The step most tools miss: doing something with those numbers. In AutoCampaign.ai's mass texting, everyone who didn't reply becomes a retargeting list in one click, so your second attempt goes only to the people who missed the first — cheaper, and less annoying for everyone who already acted.

Your first 30 days

• Week 1: Register your number, put a keyword sign at the register, add the web form.
• Week 2: Send your welcome offer to the first subscribers.
• Week 3: First real campaign — one offer, one deadline.
• Week 4: Retarget the quiet ones with a different angle; compare the two sends.

That's the whole engine: grow, send, measure, retarget. Small lists are fine — 200 local customers who actually read your messages beat 20,000 email addresses that don't.