SMS lands in the same place messages from family land. That's the power and the entire risk. Email tolerates mediocrity; an irrelevant email gets archived. An irrelevant text gets an unsubscribe and a flash of genuine annoyance at the brand. SMS marketing for ecommerce pays well precisely because the bar for using it is high.
This sits in the retention cluster with email automation and the customer lifecycle piece.
The Spam Act 2003 governs commercial electronic messages in Australia, SMS included. The working requirements: consent before sending, clear sender identification, and a functioning unsubscribe in every message. Penalties for getting this wrong are real and enforced, and bought lists are radioactive.
Operationally that means: a separate, explicit SMS opt-in (a checkbox at checkout or a dedicated signup incentive), never inheriting consent from the email list, honouring opt-outs immediately, and keeping records. None of this is onerous. All of it is non-negotiable.
The channel test: would a reasonable person want this interrupting their day?
| Send | Belongs on SMS | Why |
|---|---|---|
| Checkout abandonment nudge | Yes | Time-critical, high intent, one message |
| Back-in-stock alert | Yes | The customer asked for it |
| Shipping and delivery updates | Yes | Genuinely useful, builds trust in the number |
| Launch or restock for VIPs | Yes, sparingly | Scarcity that's actually true |
| Weekly promotions | No | That's email's job |
| Content and storytelling | No | Wrong room |
A worked example of the pairing: in the abandonment sequence from the abandoned cart guide, SMS takes the first slot inside the hour for consented contacts, one short message with a direct link, and email carries the rest of the sequence. SMS opens the door; email furnishes the room.
A handful of campaign texts a month is plenty for most stores, on top of transactional and triggered messages. Write like a person: short, plain, no shouting capitals, brand name stated since SMS strips the polish that signals who's talking. Quiet hours enforced in the platform, in the customer's timezone. Every send should survive the question "is this worth a buzz in someone's pocket".
Yes, with consent, sender identification and a working unsubscribe in every message, under the Spam Act 2003. Explicit opt-in and immediate opt-out handling are the operating standard.
Different jobs. SMS wins on immediacy for time-critical moments; email carries volume, content and storytelling. The strongest programmes run them as lanes, not rivals.
A few campaign sends a month at most, plus triggered messages like abandonment and back-in-stock. The opt-out rate per send will tell you when you've found the ceiling.
Qwrki runs retention operations as part of the operating layer: SMS consent capture, the triggered flows, and the email lane that carries the rest of every sequence, all in one place. We keep the compliance records, quiet hours and opt-out handling honest so the channel stays trusted. Book a call if you want a read-through of where SMS belongs in your current programme.
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The eight Klaviyo flows every ecommerce store needs, in build order: welcome, abandonment, post-purchase, win-back and more, with timing and tuning notes.
Why emails land in spam: authentication, sender reputation and list hygiene, plus the Gmail and Yahoo bulk sender requirements and a recovery plan.
