SMS marketing that drives immediate revenue.
ATTN builds and runs SMS and RCS programs for DTC and ecommerce brands. Our retention team handles list growth, segmentation, flows, campaigns, creative, compliance, and reporting, and plans text alongside your email and direct mail so each channel strengthens the others.
No hype. No long term contracts. Pure results.

Klaviyo Platinum Master Partner
Trusted by brands like
The channel your customers actually check.
Your customers' phones are within arm's reach all day, and a text is one of the few messages that gets seen almost immediately. That makes SMS the right tool for moments when timing matters: a product drop, a restock, a sale ending tonight, a cart someone just walked away from.
It also gives you something every brand needs more of: a second owned line to your customers. Ad costs rise and inboxes get crowded. A subscriber who has agreed to hear from you by text is a direct connection that doesn't depend on an algorithm or a bid.
- 01
Immediate
Texts get read fast, which makes SMS ideal for anything time sensitive.
- 02
Personal
It lands in the same thread as messages from friends and family, so it has to earn its place with relevance.
- 03
Owned
Your list belongs to you, which makes growth more predictable than renting attention.
Email tells the story. SMS owns the moment.
SMS works best when it isn't running solo. Email has room for storytelling, education, and detail. SMS has speed and attention. When the two are planned together, each does what it's best at, and your customers get one coherent experience instead of two competing ones.
How we connect them
- 01
Shared audiences
Email and SMS draw from the same customer data, so segments, suppressions, and purchase history stay in sync.
- 02
Coordinated timing
We sequence messages across channels so customers aren't hit with the same offer twice in an hour, and no one gets a text about something they already bought.
- 03
Two doors into one list
Your email signup can invite people to opt into text, and your text signup can bring email subscribers along. Each channel helps build the other.
- 04
A fallback when one channel goes quiet
If a shopper doesn't open an email, a text can reach them. If they ignore both, direct mail can follow. We plan the full path, not just the first message.
- TriggerCart abandoned
The shopper leaves items behind.
- EmailEmail goes out
A reminder with the product and context.
- SMSSMS follows
A short, timely nudge for those who haven't returned.
- Direct mailStill no order?
Direct mail can close the gap.
- OrderBack to buy
The shopper returns and checks out.
A full SMS program, start to finish.
- 01
Automated SMS flows & triggers
Welcome, abandonment, post-purchase, back-in-stock, and win-back messages that run on customer behavior.
- 02
Campaign calendar & execution
Planned, segmented sends for launches, sales, and seasonal moments, built to complement your email calendar.
- 03
List growth & compliance
Signup strategy that grows your list with people who want to hear from you, with consent and opt-outs handled properly.
- 04
Segmentation & personalization
Audiences based on purchase history, engagement, and interests, so every text feels relevant.
- 05
MMS & RCS creative strategy
Image-led and interactive messages designed for the small screen.
- 06
Revenue attribution & reporting
Clear reporting on what SMS is driving, what it's influencing, and where to go next.
Meet RCS. SMS, upgraded.
RCS (Rich Communication Services) is a newer messaging standard that takes the text thread your customers already use and makes it richer. Instead of plain text and the occasional image, brands can send verified, interactive messages with their name and logo attached.
What RCS makes possible:
- A verified brand identity
Your business name and logo appear in the conversation, so customers recognize who's texting before they read a word.
- Rich, visual content
High-quality images, video, and product carousels, right in the message.
- Built-in actions
Tappable buttons and suggested replies make it easy to shop, reorder, or respond without leaving the thread.
- No new app for customers
RCS lives in the default messaging app on the phone, so there's nothing to download.


The audience just got much bigger.
iPhone support for RCS, which arrived with iOS 18, opened the format to a far larger share of your audience. Major SMS platforms, including Klaviyo, Postscript, and Attentive, now offer RCS, so brands can start adding it to programs they already run. Messages automatically fall back to standard SMS when a customer's device or network doesn't support RCS, so you don't lose reach by trying it.
An addition, not a replacement.
RCS adds to your SMS program, it doesn't replace it. We'll help you decide where it earns its place, such as visual product launches, restocks, and replenishment reminders, set up your verified sender profile, design creative for the format, and test it against standard SMS so you can see what it's actually worth to your brand.
A realistic note: RCS availability depends on your platform, plan, and the devices and networks your customers use, so we'll look at your list and tools before recommending a rollout.
We run SMS where you already do.
Different brands need different tools. We run SMS programs across Klaviyo, Postscript, and Attentive, and we'll recommend the setup that fits your stack, your list size, and your goals, including staying put if what you have is working.
Growth that doesn't put your brand at risk.
Text messaging comes with real rules around consent, opt-outs, sending hours, and carrier requirements, and the rules vary by state. We build programs with those requirements in mind from day one: clear opt-in language, reliable opt-out handling, sensible send times, and frequency that respects your subscribers.
A list that's treated well stays engaged, and an engaged list keeps earning.
ATTN is a marketing agency, not a law firm. This is general information, not legal advice, so consult your own attorney about the rules that apply to your program.
- Clear opt-in language
- Reliable opt-out handling
- Sensible send times
- Frequency that respects your subscribers
- Carrier registration requirements
From audit to always improving.
- 01Audit
We review your SMS setup, list, flows, compliance, and results to find where revenue is being left behind.
- 02Roadmap
You get a prioritized plan for what to build, test, and add, including where RCS or MMS fits.
- 03Build
Our team writes, designs, and builds your flows and campaigns.
- 04Launch & test
We go live, watch performance, and run structured tests so each send teaches us something.
- 05Scale
We expand what works, protect list health, and layer in new plays as your brand grows.
Frequently asked questions.
What is SMS marketing for ecommerce?
It's sending text messages to customers who have opted in, to promote products, recover abandoned carts, announce launches, and share updates. Done well, it's a fast, direct way to drive revenue and bring customers back.
How is SMS different from email marketing?
Email is better for storytelling and detailed content. SMS is better for short, time-sensitive messages. They work best together, sharing audiences and timing so customers get a consistent experience.
What is RCS, and do I need it?
RCS is a newer messaging format that supports verified branding, rich images, carousels, and buttons inside the native text app. You don't need it to run a strong SMS program, but it's worth testing, especially for visual brands. We'll help you decide when it makes sense.
Will RCS replace SMS?
Not in the near term. RCS only works on supported devices and networks, so messages fall back to standard SMS when it isn't available. Think of it as an upgrade layered on top of SMS.
Which SMS platforms do you work with?
We run programs in Klaviyo, Postscript, and Attentive, and we'll work in the platform you already use or help you choose one that fits.
How do you keep SMS compliant?
We build programs around clear consent, reliable opt-out handling, appropriate sending hours, and carrier registration requirements. We also recommend having your counsel review your opt-in language and policies.
Do you have long term contracts?
After the first three months, our contracts are month to month, so you can adjust your strategy as your business changes.
Do I have to sign on for all services?
No. Our services are a la carte, so you can include or exclude platforms and services as needed.
Still have questions? Talk to our team.
No hype. No long term contracts. Pure results.
Tell us about your brand and your list. We'll show you where SMS, and RCS, can do more for you.
Or get a free SMS audit











