Latest / Social Media Marketing with Fexingo: Instagram, TikTok, LinkedIn, and Platform Strategy / How Brands Use Social Media for Customer Retention
Transcript
- Lucas: So we talk a lot on this show about getting customers. New followers, new leads, new sales. But here's a stat I came across that kind of stopped me: Bain & Company found that increasing customer retention rates by just 5 percent can increase profits anywhere from 25 to 95 percent. Luna: That's a massive range — but even the low end is huge. And yet most social media strategies are obsessed with the top of the funnel. Lucas: Exactly. So today I want to look at how brands are using social platforms specifically for retention. Not just posting content that keeps people engaged, but actual structured programs — loyalty tiers, exclusive communities, even direct DMs — designed to reduce churn. Luna: Give me a concrete example. Who's doing this well right now? Lucas: Starbucks is probably the gold standard. Their rewards program isn't new, but what they've done on social is interesting. They integrated the loyalty card directly into the Instagram profile — you can check your stars, reload your card, and find nearby stores without leaving the app. That reduces friction for existing customers. Luna: Right, because the easier it is to redeem, the more likely they are to come back. And Starbucks has a huge Instagram following — over 18 million — so they're meeting people where they already are. Lucas: Exactly. And the other piece is personalized offers. When you link your Starbucks account to Instagram, they can serve you an ad for your favorite drink based on your purchase history. That's not acquisition — that's retention marketing. They're spending money to keep you coming back, not to find new people. Luna: Sephora does something similar with their Beauty Insider program. They have a whole TikTok strategy where they share exclusive tutorials and product drops that are only available to members. It creates a sense of insider access. Lucas: That's a great example. The content itself becomes a retention mechanism. If you're not a member, you miss out on the video. So you're incentivized to sign up and stay active. And they use TikTok's duet and stitch features to let members co-create content — which deepens the relationship. Luna: I've seen that. They'll post a tutorial and then ask members to show their own version using a specific hashtag. It turns the brand into a community. Lucas: And community is the real retention driver. There's a concept called 'switching costs' — the more time and identity a customer invests in a brand, the harder it is to leave. Social media lowers the barrier to that investment. Luna: So how do you actually measure whether these tactics are working? Because likes and comments are vanity metrics for retention. Lucas: Right. The real metric is repeat purchase rate tied to social touchpoints. You need to track whether a customer who engages with your Instagram stories buys again within a certain window. Some brands are using unique promo codes in DMs or stories to attribute that. Luna: And that's where direct messaging comes in. I've noticed more brands sending post-purchase follow-ups via DM instead of email. It feels more personal. Lucas: Totally. And it works. A study from Shopify found that customers who receive a DM within an hour of purchase have a 70 percent higher likelihood of making a second purchase. That's a retention tactic that costs almost nothing. Luna: Seventy percent — that's wild. But brands have to be careful not to come off as creepy. There's a fine line between personalized and invasive. Lucas: Absolutely. The key is permission-based. If a customer opts in to receive updates via WhatsApp or Messenger, then a quick 'Hey, how's the product working for you?' feels helpful, not creepy. Brands like Warby Parker and Allbirds do this well. Luna: And they use chatbots for the initial outreach, so it's scalable. Then if the customer responds, a human picks it up. Lucas: Right. The combination of automation and human touch is powerful. So let's talk about some numbers. The cost of acquiring a new customer on social media has gone up significantly over the past few years. In 2026, the average cost per acquisition on Instagram is around $50 to $70, depending on your industry. Luna: Compared to retaining an existing one, which costs maybe a tenth of that. Lucas: Exactly. And yet most brands still allocate 80 percent of their social budget to acquisition. There's a huge opportunity to shift some of that spend toward retention-focused content and tools. Luna: Speaking of tools — what about private Facebook groups? A lot of brands are building those for their most loyal customers. Lucas: Huge one. Peloton is the classic case. They have thousands of Facebook groups organized by instructor, location, or workout type. Those groups are a massive retention engine because members form relationships with each other, not just the brand. Luna: And those relationships make it really hard to cancel your subscription. You'd be leaving your workout buddies. Lucas: That's the switching cost in action. So if you're a brand listening, think about this: what is the social equivalent of a loyalty card? Could be a hashtag community, a private group, or a DM sequence that checks in at day 7, day 30, day 90. Luna: And if you're building that, you also need to measure the right thing. Not just retention rate, but net promoter score among social-engaged customers vs. non-engaged. Lucas: Exactly. And if these marketing conversations have sparked something you've actually used — maybe a retention tactic you tried based on something we said — we'd love to hear about it. And if you find the show valuable, one way to support it is at buy me a coffee dot com slash fexingo. No pressure, just helps keep us ad-free and focused on the content. Luna: Yeah, and we really appreciate the listeners who've done that. It makes a difference. Lucas: Alright, back to it. So another tactic I want to mention is using social for proactive customer service. When a brand solves a problem publicly on Twitter or Instagram, it actually boosts retention for everyone who sees it. Luna: Because it signals that the brand cares. Zappos is famous for this — they'll go above and beyond in a public reply, and that builds trust. Lucas: Right. And trust is a retention driver. If I know a brand will take care of an issue quickly on social, I'm less likely to switch to a competitor. Luna: So what's the one thing you'd recommend a brand do this week to improve retention on social? Lucas: I'd say start with a simple DM automation. Set up a sequence that triggers 24 hours after a customer mentions your product or service in a post or story. Just say 'Thanks for the love — let us know if you need anything.' It's low effort and high impact. Luna: I like that. And then track whether those customers repurchase at a higher rate. That's the data that'll convince your boss to invest more in retention. Lucas: Exactly. Because ultimately, retention isn't just a metric — it's a strategy. And social media is one of the best tools we have to execute it right now.