You know that feeling when you look at your Meta dashboard and the numbers technically work, but something feels off? CPAs are creeping up. ROAS looks okay on a 1-day click but falls apart on a 7day view. And the customers coming in just don't stick.

I've been staring at our erlich cohort data a lot lately. Almost religiously tbh, nothing beats a good cohort diagram in my view, just beautiful. So, what did i do? I compared how customers behave based on where they came from. Paid vs. organic vs. referred. And let me tell you, there are wild gaps.

Paid acquired customers buy once, maybe twice. Their return rates are higher. Their email engagement is lower. And the moment you slightly raise a price or change something, they're gone.

Customers who came through a friend? Completely different animal. They buy more, they stay longer, they actually open your emails. Because someone they trust already did the selling for you.

Which brings me to the thing I keep thinking about: most brands are sitting on an acquisition channel they barely use. Their own fans.

The seed group in your list

Somewhere in your email database, there's a group of people (probably 10-15% of your list) who genuinely love your brand. They've bought 3, 4, 5 times. They open every email. If a friend asks for a recommendation in your category, your name comes out of their mouth before they even think about it.

Picture one of them right now. They're standing in line for coffee, phone in hand, scrolling through a WhatsApp group. A friend asks "hey, where do you buy X?" They type your brand name and hit send. That's a conversion that cost you zero euros and came with built-in trust.

Most brands have no system to make this happen more often. They treat that superfan the same as someone who bought a single item on Black Friday 2023 and hasn't been back since.

5 things I'd do this month

1. Pull your cohort data by acquisition source. Open your analytics, Klaviyo, Shopify, whatever you're running. Compare repeat purchase rate, AOV, and return rate for customers who came through paid vs. organic vs. referral. If you can't slice this, that's the first thing to fix. You're flying blind.

2. Find your seed group. Sort your customer list by purchase frequency and email engagement. You're looking for the overlap: people who buy repeatedly AND read your emails. That Venn diagram is your referral engine. In most lists I've seen, it's somewhere between 8-15% of active customers.

3. Give them something actually worth sharing. "Give 10%, get 10%" is not a conversation starter. Nobody texts a friend about a 10% discount. It’s lame and i think even harmful for your brand. Think about what would make someone interrupt their group chat. A powerful Story! Something that makes them feel like an insider, a close friend, an ally.

4. Pick your highest-trust channel and start small. Don't blast your full list with a referral campaign on day one. Send a personal, well written email to your seed group only. If you have a WhatsApp group or a close community on social, message them there. The conversion rates in these channels are on a different planet compared to a generic banner on your website.

5. Make the mechanic ridiciously simple. One personal referral link. Auto-tracked. No sign-up form, no "create an account first," no 3-step process. If it takes more than 10 seconds to share, most people won't bother. Test it yourself: can you send your referral link to a friend in under 2 taps? If not, simplify.

Now comes the part where i’m backpaddling a bit

I'll be honest: This won't replace your paid channels. You'll still run Meta, still run Google. But over time, the mix shifts. And the referral side is significantly more profitable per customer because those people arrive with trust and a story in their head.

The catch: it’s hard work. You earn referrals by being good enough that people put their name behind your brand. Which is a pretty healthy forcing function for your product and brand too.

I'd reaaaally love to hear what you're doing on this. Running a referral program already? Thinking about it? Tried it and it flopped? Hit reply, I read everything. (Might take a few days to be fair, sun’s out in portugal)

Philipp

P.S. If you're in the middle of rethinking your acquisition mix and want to talk it through, just reply. I love these conversations.