How to leverage SMS marketing strategy to increase return visits

Welcome. If you're running a hotel, a retail chain, a stadium, or any venue where people show up, connect to WiFi, and then disappear - this briefing is for you. I'm going to walk you through exactly how a well-structured SMS marketing strategy turns one-time visitors into repeat ones. Not theory. Not aspirational case studies. Actual architecture, actual numbers, and the specific decisions you need to make this quarter. Here's the core problem we're solving. Most venue operators collect guest data at the point of WiFi login and then do almost nothing with it. The phone number sits in a database. The visitor leaves. And unless something brings them back, they're gone. SMS marketing, done correctly, is the mechanism that closes that loop. Let's get into it. [medium pause] First, let's establish why SMS outperforms every other re-engagement channel at the venue level. SMS carries a 98% open rate. Email sits at around 20 to 28%. That's not a marginal difference - that's a structural one. When you send an SMS to a verified phone number, it gets read. The question is whether it gets acted on. Click-through rates for well-segmented SMS campaigns run between 19 and 36%, depending on campaign type and timing. Conversion rates for programmes with solid segmentation land at 21 to 30%. Compare that to email's 10 to 15% and you understand why SMS deserves its own budget line, not just a footnote in your email strategy. Now, the critical word there was "verified." This is where Guest WiFi becomes the foundation of your entire SMS strategy. When a visitor connects to your Guest WiFi through a captive portal - the login screen they see before they get internet access - you have a structured, consent-driven moment to capture their phone number. Not a guessed number from a third-party list. Not a purchased contact. A number they typed in themselves, verified by a one-time passcode, with explicit marketing consent recorded at the point of capture. Purple Engage captures that data across more than 80,000 live venues. In 2024 alone, we processed 440 million logins. Every one of those logins is a potential first-party data point - a verified identity attached to a real visit, a real location, and a real timestamp. That data architecture matters because it's what makes segmentation possible. And segmentation is what separates a 3% click-through rate from a 26% one. [medium pause] Let me walk you through the four segments that drive the highest return-visit rates. Segment one: lapsed visitors. These are people who visited your venue 30 or more days ago and haven't returned. A targeted re-engagement SMS - something like "We haven't seen you in a while. Here's 20% off your next visit" - sent at the right time, to the right person, consistently outperforms broadcast campaigns. The re-engagement rate for this segment runs at around 45% when the message is personalised to visit history. Segment two: frequent visitors. Your highest-value guests. These people visit regularly and respond well to loyalty messaging - early access, double points, exclusive offers. The goal here isn't re-engagement; it's frequency amplification. Venues using this segment correctly see visit frequency increase by a factor of three compared to non-targeted guests. Segment three: event attendees. If someone attended a conference, a match, or a concert at your venue, they are a warm prospect for the next one. An SMS sent within 48 hours of their visit, referencing the specific event, with a link to the next event or an exclusive pre-sale, converts at rates significantly above standard promotional messages. Segment four: new visitors. First-time guests who connected to your WiFi in the last seven days. A welcome SMS with a small incentive for a return visit - say, 15% off - sent within 24 to 48 hours of their first visit, captures them while the experience is still fresh. Purple data shows a 28% second-visit rate from this segment when the follow-up is sent within that window. [medium pause] Now let's talk about the technical architecture that makes this work. The data flow has five stages. Stage one: the venue access point - whether that's Cisco Meraki, HPE Aruba, Ruckus, Juniper Mist, or Ubiquiti UniFi - routes unauthenticated devices to the captive portal. Stage two: the captive portal presents a branded login screen with a clear, GDPR-compliant consent checkbox. The visitor enters their phone number, receives a one-time passcode, and confirms. Stage three: Purple Engage stores that verified number alongside the visit metadata - venue, timestamp, dwell time, visit frequency. Stage four: the automated campaign engine applies your segmentation rules and triggers the appropriate SMS at the configured time. Stage five: the message lands on a verified device, with a tracked link that closes the attribution loop back to your analytics dashboard. The compliance layer sits across all five stages. GDPR requires explicit, informed consent before you send a marketing SMS. That consent must be granular - separate from terms of service - and you must be able to demonstrate it. Purple's captive portal captures conscious-choice opt-ins, records the consent timestamp, and stores it in a format that satisfies both GDPR and CCPA audit requirements. Purple is ISO 27001 certified, GDPR and CCPA compliant, and B Corp certified. One point on message frequency: the data is clear. Unsubscribe rates climb above 3.5% per send when frequency exceeds two to three messages per month for promotional content. Set your frequency caps in the campaign engine before you launch, not after you've seen a spike in opt-outs. [medium pause] Here's what I see go wrong most often when venue operators deploy SMS marketing. The first mistake is treating SMS as a broadcast channel. Sending the same message to your entire contact list is the fastest way to drive up opt-outs and drive down return on investment. The ROI on SMS sits between 21 and 71 pounds for every pound spent - but that range assumes segmentation. A broadcast to an unsegmented list sits at the bottom of that range. A triggered, behavioural message to a well-defined segment sits at the top. The second mistake is poor timing. SMS messages sent within five minutes of a user action - a visit, a purchase, an event check-in - achieve click-through rates of up to 36%. Scheduled broadcasts to a full list achieve around 9%. The difference is context. Build your campaign triggers around visit events, not calendar slots. The third mistake is skipping the attribution step. If you're not tracking which SMS messages drove which return visits, you can't optimise. Every link in your SMS should carry UTM parameters. Every return visit should be matched back to the originating campaign in your analytics dashboard. The fourth mistake is underinvesting in the consent capture moment. The captive portal is not just a login screen. It's the data acquisition layer for your entire SMS programme. A poorly designed portal with buried consent options produces a small, low-quality list. A well-designed portal with a clear value exchange produces a large, high-intent list. [medium pause] A few rapid-fire questions I get asked regularly. How quickly should you send the first SMS after a visit? Within 24 hours for new visitors. Within 48 hours for event attendees. For lapsed visitor re-engagement, timing is less critical than personalisation. What's the right message length? Under 160 characters for standard SMS. If you need more, use a link to a landing page. Long messages fragment across multiple SMS units and increase cost. Do you need a short code? For high-volume venue programmes, a dedicated short code or a verified sender ID gives you better deliverability and brand recognition. Long numbers work for low-volume testing but don't scale. [medium pause] Let me leave you with five things to act on this quarter. One: audit your current captive portal. Is it capturing phone numbers with explicit marketing consent? If not, that's your first fix. Two: segment your existing contact list into the four groups I described - lapsed, frequent, event, and new. Even a rough segmentation will outperform a broadcast. Three: set up at least one automated trigger - the 24-hour new visitor welcome message. It's the highest return-on-investment campaign in the toolkit and takes under an hour to configure in Purple Engage. Four: implement UTM tracking on every SMS link. You cannot optimise what you cannot measure. Five: set your frequency caps before you launch. Two to three promotional messages per month is the ceiling for most venue types. Go above that and you'll spend more on list rebuilding than you save on send costs. The full technical guide is linked in the show notes, including architecture diagrams, worked examples for hospitality, retail, and stadium environments, and the compliance checklist. Thanks for listening.