How to leverage SMS marketing tool to increase return visits

Speak in British English with a confident, authoritative, and conversational tone - like a senior consultant briefing a client in a boardroom. Measured pace, clear diction, warm but professional. No filler sounds. Pause naturally between sections: Welcome to the Purple technical briefing series. I'm talking today about something that sits right at the intersection of your WiFi infrastructure and your marketing stack - specifically, how to use an SMS marketing tool to drive measurable return visits to your venue. Whether you're running a hotel group, a retail chain, a stadium, or a conference centre, the principles here apply directly. Let's get into it. [medium pause] So, first - why SMS, and why now? You've probably got email working to some degree. Maybe you're seeing 20% open rates, which is about average. But consider this: SMS open rates sit at 98%, and 90% of those messages are read within three minutes of delivery. That's not a marginal improvement - that's a fundamentally different channel. When you send an SMS to a guest who connected to your WiFi last Tuesday, you are reaching them in the same inbox they use for messages from their family. That's a level of attention that no email campaign can replicate. The key word there is "guest who connected to your WiFi." That's the starting point for everything we're going to discuss. If you don't have a mechanism to capture verified phone numbers at the point of WiFi login, you don't have an SMS programme - you have a wish list. [medium pause] Let me walk you through the technical architecture. It starts with your captive portal - the login page guests see when they connect to your Guest WiFi. Purple Engage captures first-party data at that moment: name, email address, and phone number, all with explicit GDPR-compliant consent. The guest ticks a box that says they're happy to receive marketing messages. That's your conscious-choice opt-in. Without it, you're not compliant, and you're not building a sustainable list. Once that data is captured, it flows into Purple's cloud overlay platform, which sits hardware-agnostically above your existing access points - whether those are Cisco Meraki, HPE Aruba, Ruckus, Juniper Mist, or any of the other major enterprise platforms. The phone number is verified, timestamped, and associated with a venue, a visit time, and a device fingerprint. You now have a first-party data record that's worth something. From there, the segmentation engine kicks in. This is where the intelligence lives. You're not sending the same SMS to every person who ever connected. You're segmenting by visit frequency - first-time visitors, guests who've been twice, regulars who come every week. You're segmenting by dwell time - someone who spent four hours in your venue behaves differently from someone who was there for 20 minutes. You're segmenting by recency - a guest who hasn't been back in 30 days is a lapse risk; one who visited yesterday is a loyalty opportunity. [medium pause] Now let's talk about the actual campaigns - because this is where most teams get it wrong. The instinct is to blast everyone with a discount code. That works once. What actually drives return visits is relevance and timing. Here's a real-world example. A quick-service restaurant chain with 200 locations deployed Purple Engage across their estate. They set up three automated SMS flows. First: a welcome message sent 24 hours after a first visit, with a personalised offer tied to the menu items available at that specific location. Second: a re-engagement message sent to guests who hadn't returned within 21 days, with a time-limited incentive. Third: a loyalty recognition message for guests on their fifth visit, with no discount - just an acknowledgement that they were a regular. The result: a 31% increase in return visits from the SMS audience compared to guests who hadn't opted in. That's not a projection - that's measured footfall attribution. The attribution piece is critical. You need to close the loop. When a guest returns after receiving an SMS, your WiFi platform sees the device reconnect. That reconnection is timestamped and matched against the campaign send. Purple's analytics dashboard surfaces this as a return visit rate, segmented by campaign. You can see, in concrete terms, which SMS triggered which visit. That's the data your CFO wants to see when you're justifying the programme budget. [medium pause] Let me give you a second example from the hospitality sector. A mid-scale hotel group - 40 properties, roughly 8,000 rooms - integrated Purple Engage with their property management system. Guests who connected to the hotel WiFi during their stay were automatically enrolled in a post-stay SMS sequence. Three days after checkout, they received a message with an exclusive direct-booking rate for their next stay - bypassing the OTA commission entirely. The message was personalised with the specific property they'd stayed at and the dates they'd visited. Conversion rate on that SMS: 12%. For context, their email equivalent was running at 2.3%. The revenue impact, measured over six months, covered the entire platform cost in the first quarter. What made that work technically? The integration between Purple's API and the PMS. Guest data flows bidirectionally - the PMS provides stay dates and room type, Purple provides WiFi connection data and consent status. The SMS is triggered automatically when the post-stay window opens. No manual campaign management required. The marketing team sets the rules once; the system executes at scale. [medium pause] Now, let me flag the failure modes - because there are several, and they're avoidable. The first is consent drift. GDPR and the UK PECR regulations require that your SMS opt-in is specific, informed, and freely given. If your captive portal bundles SMS consent with WiFi access - meaning guests can't get online without agreeing to marketing - that's not a valid consent. Purple's Engage product uses a separate, unticked checkbox for marketing opt-ins. That's the right architecture. Don't cut corners here; the ICO fines are real. The second failure mode is frequency. SMS is a high-attention channel, which means overuse damages trust faster than any other channel. The benchmark data is clear: 23% of consumers will disengage from a brand entirely if they feel spammed. For venue operators, the safe cadence is no more than two to four messages per month per guest, with clear opt-out instructions in every message. The third failure mode is poor segmentation. Sending a "we miss you" message to a guest who visited yesterday is a data quality problem. It signals that your systems aren't talking to each other. Before you launch any SMS campaign, audit your data pipeline: is visit data flowing from your WiFi platform to your CRM in real-time? Are your segments refreshing daily? A stale segment is worse than no segment. [medium pause] Quick-fire questions I get from IT teams and marketing directors. "Do we need to replace our existing CRM?" No. Purple Engage integrates with Salesforce, HubSpot, and most major CRM platforms via API and webhook. Your existing CRM becomes the destination for the first-party data Purple captures. "What about GDPR and data residency?" Purple is ISO 27001 certified, GDPR compliant, and CCPA compliant. Data residency options are available for EU-based deployments. Every opt-in is logged with a timestamp and consent version, which is your audit trail if you're ever challenged. "Can we run SMS alongside email?" Absolutely - and you should. Brands that integrate SMS into an omnichannel strategy see a 47.7% lift in engagement compared to single-channel approaches, according to Omnisend's 2024 data. The two channels complement each other: email for longer-form content and offers, SMS for time-sensitive triggers and re-engagement. "What's the realistic ROI?" Industry benchmarks put SMS at between 21 and 41 dollars return for every dollar spent. For venue operators specifically, the return visit attribution model means you can tie revenue directly to the channel. A hotel that converts 12% of post-stay SMS recipients into direct bookings at an average nightly rate of 120 pounds is generating measurable, attributable revenue. [medium pause] To wrap up: the SMS marketing tool opportunity for venue operators is straightforward in principle and entirely achievable in practice. Capture verified phone numbers at WiFi login with proper GDPR consent. Segment your audience by visit behaviour. Automate targeted campaigns tied to real visit triggers. Close the loop with WiFi-based return visit attribution. And measure everything. The three things to take away from this briefing: first, your Guest WiFi is already a data capture asset - if you're not collecting phone numbers with consent, you're leaving the most valuable part of the channel unused. Second, SMS outperforms email on every engagement metric that matters for driving return visits - open rate, response rate, and conversion rate. Third, attribution is what separates a credible programme from a cost centre - make sure your WiFi platform and your SMS tool are sharing data bidirectionally. If you want to see how this works in practice across your specific infrastructure, the Purple Engage platform is worth a conversation. We're live in 80,000 venues, we've processed 440 million logins in 2024, and we have the integration depth to fit into whatever stack you're already running. Thanks for listening. Until next time.