5 smart SMS marketing strategies to grow your brand

SMS open rates are among the highest of any marketing channel, a stat most marketers would frame and hang on their wall. But there's a catch: people have almost zero patience for texts they didn't ask for. One too many irrelevant messages, and your customer isn't just ignoring you. They're blocking you.

That's what makes SMS unique among marketing channels. Email is the workhorse, social media is the megaphone, and SMS is the closer. It's where intent meets timing, delivering the right message at the exact moment someone is ready to act. And when it works, it works fast: most texts are read within minutes of being received.

At Mailchimp, we've seen firsthand that the brands getting real results aren't sending mass blasts and hoping for the best. They're building systems around high-intent growth, reaching fewer people but with better messages at smarter times. Done right, SMS consistently drives higher conversion rates than nearly any other channel.

Keep reading to learn how we at Mailchimp recommend building an SMS marketing strategy that drives real revenue without burning through your subscriber list.

Table of contents:

• Build a consent-first growth engine

• Stop the all-call and start segmenting

• Master the art of the nudge with automation

• Orchestrate SMS with your other channels

• Respect the lock screen

• Start with one automated spark

Build a consent-first growth engine

A phone number is one of the most personal pieces of information a customer can hand over. It's a higher-trust asset than an email address, and it demands a clear value exchange. People need a reason to give you direct access to their lock screen.

The best way to earn that opt-in is to make it feel exclusive. In my experience, the brands that do this best treat SMS access as a VIP perk, not just another checkbox in their sign-up flow.

Offer SMS-only perks that customers can't get anywhere else: early access to product drops, real-time shipping updates, or flash sales that hit texts before they hit the website.

Tie sign-ups to specific moments in the customer journey. Offer a discount code via text right after someone's first purchase, for example. When the value is obvious, signing up feels like a no-brainer instead of a gamble.

But here's the part a lot of brands skip. Every sign-up source, whether it's a pop-up, a checkout flow, or a QR code on packaging, needs to tell the user exactly what they're signing up for. How often will you text? What kind of content will they receive? No surprises later. 

Platforms like Mailchimp let you customize opt-in forms with clear messaging and double opt-in flows so subscribers know what to expect from day one.

When you're upfront, you attract people who actually want to hear from you.

Stop the all-call and start segmenting

One of the biggest mistakes brands make is treating their subscriber list like one giant group chat. Sending the same message to everyone might feel efficient, but it's the quickest path to "STOP" replies and unsubscribes.

The real ROI comes from low-volume, high-relevance texts. I've seen this play out time and again: a smaller, well-targeted send almost always outperforms a mass blast.

Instead of blasting your entire list, group subscribers by their actual behavior. What did they last purchase? What pages did they browse? Where do they live? How recently did they engage? These details let you send messages that feel personal rather than random.

A targeted text to 100 people who recently browsed winter coats will always outperform a generic promo sent to 10,000 people who may or may not care. Most SMS platforms, including Mailchimp, let you build segments based on purchase history, engagement level, and location.

Here are a few segmentation approaches worth testing: 

• Purchase-based segments: Group customers by what they've bought and send recommendations or restocks that actually relate to their purchase history. 

• Browse behavior segments: Target people who looked at specific product categories but didn't buy, with a nudge that speaks directly to what caught their eye. 

•  Geographic segments: Tailor messaging around local events, weather, or store-specific promotions so texts feel relevant to where someone lives. 

The goal is to make every text feel like it was written for the person reading it. When your segments are dialed in, your unsubscribe rates drop and click-through rates climb because people are getting messages they actually care about. 

The art of the nudge with automation

Some moments are too time-sensitive for a scheduled campaign. For example, a customer adds something to their cart and walks away, a sold-out product comes back in stock, or a subscription is about to renew. These are moments where timing is everything, and automated SMS triggers can catch them in a way a weekly batch send never could.

The best automated texts solve a problem for the customer rather than push a sale. An abandoned cart reminder works because it's helpful, not because it's pushy. A back-in-stock alert works because the customer already told you they wanted it. Even a simple order confirmation adds value by giving the customer peace of mind without making them dig through their inbox.

The trick is making these automated messages sound like they came from a person, not a system. Here are a few ways to keep your automated SMS scripts feeling human: 

• Lead with casual language: Write the way you'd text a friend, just a little more polished. "Hey, still thinking about those?" lands better than "Notification: You have items in your cart." 

• Keep it short and scannable: Make sure you have one clear message with one clear action. Nobody wants to read a paragraph on their phone. 

• Add a reason to act now: Mention limited stock, an expiring discount, or a shipping cutoff. Give people a genuine reason to come back. 

Orchestrate SMS with your other channels

SMS shouldn't be a solo act. The strongest strategies treat text messages as part of a broader system where each channel has a specific job.

Think of it as a one-two punch. Email handles the long story: product launch details, brand narrative, the full sale breakdown. SMS delivers the "last chance" reminder or the time-sensitive nudge that gets someone to actually open their wallet. Each channel does what it does best without stepping on the other.

A well-coordinated sequence might look like an email on Monday with full campaign details, followed by a text on Wednesday sent only to subscribers who didn't open it.

The part that trips up most brands is redundancy. If someone already clicked through your email and made a purchase, they shouldn't get a follow-up text about the same sale. Your SMS strategy needs to account for what's already happened across your other channels so every touchpoint adds something new to the conversation.

Most marketing platforms let you build conditional logic into your automations. In Mailchimp, you can set up workflows that check whether a subscriber opened an email or clicked a link before sending a text. 

That cross-channel awareness keeps your messaging tight and prevents your brand from feeling like it's shouting from every direction at once.

Respect the lock screen

Your customer's lock screen is sacred ground. Every notification that pops up there is competing with texts from family, calendar reminders, breaking news alerts, and every other app vying for attention. 

If your brand overstays its welcome in that space, you're getting muted—or worse, blocked. And unlike email, where they sit unopened in a promotions tab for days, a bad text is immediately visible and annoying. 

Practical boundaries go a long way toward protecting that real estate. Here are a few rules worth building into your SMS strategy: 

• Respect time zones: Nobody wants a promotional text at 3:00 a.m. Schedule sends based on the recipient's local time, not yours. Most platforms handle this automatically, but it's worth double-checking. 

• Cap your frequency: Two to four texts per month is a reasonable range for most brands. More than that, and you risk text fatigue—the point where subscribers stop reading your messages even if they haven't unsubscribed yet. Less than that, and subscribers forget they signed up. Find a cadence that keeps you visible without wearing out your welcome. 

• Make opting out easy: A clear "STOP" option in every message actually builds brand trust. People are more willing to stay subscribed when they know they can leave anytime without jumping through hoops. Any easy exit reduces anxiety around signing up in the first place, which means more opt-ins over time. 

The brands that earn long-term loyalty through SMS are the ones that treat every text like a privilege, not an entitlement. 

Start with one automated spark

If all this feels like a lot, don't worry about building a complex multi-channel SMS campaign tomorrow. Just pick your top-performing email automation—whether that's a welcome series, an abandoned cart flow, or a post-purchase follow-up—and add one SMS touchpoint to it. 

One well-timed text in the right place can show you exactly how much impact this channel can have, and it'll give you real data to build on. 

I've seen firsthand that growth from SMS isn't really about the tech, platform, or number of automations you build. It's about treating the person on the other end of that text with respect. Send messages that are useful, well-timed, and easy to opt out of. Do that consistently, and your subscriber list becomes one of the most valuable assets your brand has.