Benefits of SMS Marketing: What It Does Well (and Where It Falls Short)

SMS marketing is one of the most effective channels in e-commerce. The open rates are unmatched, the delivery is instant, and the engagement is real. If you're not using SMS as part of your marketing stack, you're leaving money on the table.

But the benefits of SMS marketing come with a structural limitation that most guides gloss over: you can only text people who gave you their phone number. And for the vast majority of your store traffic, that never happens. Let's break down what SMS does brilliantly, where it falls short, and how to cover the gap.

This article is part of our complete SMS Marketing Best Practices guide.

The Core Benefits of SMS Marketing

1. Open rates that dwarf every other channel

This is the headline stat, and it's real. Almost every text message gets read — most within 90 seconds of delivery. No other marketing channel comes close. Email averages 20% open rates. Social media organic reach is in the single digits. SMS gets seen.

2. Instant delivery for time-sensitive offers

When you send an SMS, it arrives in seconds. This makes it perfect for flash sales, limited-time drops, back-in-stock alerts, and anything with a ticking clock. A well-timed text about a 4-hour sale can drive more revenue than a week-long email campaign.

3. High response and conversion rates

SMS doesn't just get opened — it gets acted on. Average response rates for SMS sit around 45%, compared to 6% for email. Click-through rates on SMS links average 19%. When someone reads a text, they're far more likely to tap through and buy.

4. Direct, personal communication

Text messages land in the same inbox as conversations with friends and family. There's an intimacy to SMS that email and social can't replicate. When used well, it feels like a 1:1 message from a brand the customer chose to hear from.

5. Cost-effectiveness

SMS campaigns are inexpensive to run — typically $0.01-0.05 per message depending on volume. When you factor in the high conversion rates, the ROI is exceptional. Most e-commerce brands see $25-70+ in revenue per SMS recipient per month.

6. Works across every industry

E-commerce, retail, restaurants, healthcare, events — SMS is universally applicable. Any business that needs to reach customers quickly with actionable information benefits from text message marketing.

Permission-Based: A Benefit and a Bottleneck

SMS is permission-based by law. Customers must explicitly opt in before you can text them. This is framed as a benefit — and it is, from a trust perspective. Opted-in subscribers are genuinely interested in hearing from you, which drives higher engagement.

But it's also the biggest bottleneck in SMS marketing. Getting that opt-in is hard:

• People are protective of their phone numbers — more so than email
• Typical SMS opt-in rates are 1-3% of site visitors
• You usually need to offer a discount (10-15% off) to incentivize sign-up
• Most sign-ups happen at checkout — which 97% of visitors never reach

Where SMS Marketing Falls Short

It can't reach anonymous browsers

The biggest gap in SMS marketing is structural: you need a phone number before you can send a single message. For e-commerce brands driving traffic from social media ads, the vast majority of visitors browse anonymously. They click your TikTok ad, scroll through products for 30 seconds, and leave. No phone number. No email. No way to follow up via SMS.

Subscriber acquisition is slow and expensive

Building an SMS list takes months. You're growing it one subscriber at a time, often giving away margin (via discount incentives) to get each one. Meanwhile, you're paying for thousands of ad clicks from shoppers you'll never be able to reach again.

Compliance adds friction

TCPA compliance requires explicit consent, clear disclosures, easy opt-out, and detailed record-keeping. This is necessary and important — but it adds friction to every sign-up flow. Every additional form field or checkbox reduces conversion rates.

Over-messaging drives unsubscribes

Because SMS is so personal, the tolerance for over-messaging is low. Send more than 4-6 texts per month and unsubscribe rates spike. You're working with a small, carefully built list — and every unsubscribe hurts more than a lost email subscriber.

Filling the Gap: Reaching the Other 97%

The benefits of SMS marketing are real — for the subscribers you have. But most e-commerce brands need a way to reach the shoppers who never opt in. That's where push notifications through Apple App Clips come in.

When a shopper taps your social media ad, they can land in a native App Clip experience — your storefront, rendered natively on iOS, with push notification capability built in. No phone number, no email, no account creation. If they browse and leave, you can send a push notification directly to their Lock Screen within minutes.

• No opt-in form needed — App Clips grant ephemeral push permission automatically
• Reaches browse-phase abandoners — the 93% who leave before adding to cart
• Lock Screen delivery — same prominent placement as text messages
• Works from the first visit — no list-building period required

SMS + Push: The Full-Funnel Approach

The smartest e-commerce brands don't choose between SMS and push notifications — they use both, targeting different parts of the funnel:

• Push notifications for the 93% who browse and leave without identifying themselves
• SMS for the opted-in subscribers who've shown high purchase intent
• Email for long-form nurture, newsletters, and post-purchase flows

SMS remains one of the highest-ROI channels in e-commerce. But its benefits are maximized when it's part of a stack that covers the entire customer journey — not just the bottom of the funnel.

Read the full guide: SMS Marketing Best Practices for E-Commerce

Want to recover the 93% of shoppers who leave before adding to cart?