SMS Marketing
Email MarketingAlso: Text Message Marketing · SMS Campaigns
Quick definition
SMS marketing is sending promotional or transactional text messages directly to a customer's phone. It covers everything from abandoned cart reminders to flash sale alerts to shipping updates, sent through a dedicated SMS platform rather than a personal number.
How it varies across Australia
Open rates for SMS sit well above email across most Australian industries, though volume tolerance is lower. Retail and hospitality lean on SMS heaviest, while B2B categories use it sparingly if at all. The gap between SMS and email open rates is wide, but SMS opt-out sensitivity is far higher too.
Compare retention channel performance across Australian industries →What it actually means
SMS marketing works because it breaks a rule email accepts. Email waits patiently in an inbox until you're ready. SMS interrupts. It lands on the same lock screen as a message from a partner or a parent, which is exactly why it converts so well and why it burns trust so fast when misused.
The channel suits specific moments, not general communication. Abandoned cart nudges, delivery updates, flash sales with a genuine deadline, appointment reminders. These are messages a customer would want interrupted for. A weekly newsletter crammed into 160 characters is not one of them, and that's usually where SMS marketing programmes fail.
Segmentation matters more here than in email because the tolerance for irrelevant messages is lower. A customer will forgive a mistargeted email. A mistargeted text feels like an intrusion, and the opt-out button is one tap away.
Most SMS platforms plug into the same marketing automation stack as email, triggering off the same events (cart abandonment, purchase, churn risk). The discipline that separates good SMS programmes from bad ones is restraint, not creativity.
Email lives in a folder you check when you're ready. SMS lives in the same pocket as a call from your mother. Treat the channel with that level of respect.
How it shows up
SMS marketing shows up as the trigger behind abandoned cart recovery flows, post-purchase shipping updates, back-in-stock alerts and time-boxed sale announcements. It also shows up in the opt-out data. A rising unsubscribe rate on SMS is a much louder signal than the same trend in email, because the tolerance threshold for annoyance is lower and the channel feels more personal.
The Australian context
SMS marketing in Australia sits under the Spam Act 2003, enforced by the Australian Communications and Media Authority (ACMA). Every commercial message needs clear consent, a working opt-out mechanism and accurate sender identification. ACMA has issued real penalties to businesses that skip these steps, so this isn't a theoretical compliance risk.
Australian consumers also have unusually high SMS engagement compared to some overseas markets, partly because scam call volume has made phone calls less trusted while text still reads as legitimate. That trust is fragile. Overuse erodes it quickly, and once a customer opts out of SMS they rarely opt back in.
Where people get this wrong
Related terms
Common questions
Is SMS marketing legal in Australia?
Yes, provided you have explicit consent, identify your business clearly in the message, and include a working opt-out method. The Spam Act 2003 governs this, enforced by the Australian Communications and Media Authority. Breaches carry real financial penalties, not just warnings.
How often should I send SMS marketing messages?
Far less often than email. Most successful programmes send SMS only for genuinely time-sensitive or high-value moments, often just a handful of times per month. Frequency that feels normal in email will drive opt-outs in SMS.
What's the difference between SMS marketing and email marketing?
SMS is read within minutes and suits short, urgent messages like cart abandonment or delivery updates. Email tolerates longer content and higher frequency but gets read on the customer's own schedule. Most retention strategies use both, matched to the right moment.
Do I need a separate opt-in for SMS if a customer already subscribed to email?
Yes. Email consent and SMS consent are treated separately under Australian spam law. A customer opting into your email list has not automatically consented to receive text messages, and sending without that separate consent is a compliance risk.
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About New Rebellion
New Rebellion is a marketing intelligence consultancy. We build tools, score Australian businesses on how their marketing actually performs, and publish Debrief every day. This dictionary is part of how we work in the open.
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