It's what you said. Why "Sold Out" Is Sending Your Customers Somewhere Else
If you're like me, you've been there. After 3 months and 100 hours of research (which is now 5 minutes using AI) you finally decided on which Dyson you needed (vehicle, watch, laptop, jeans... you name it) and you are ready to pull the trigger and buy it.
And when you go to the website, it says two words: "Sold out."
Back to Google, surely I can find it somewhere else.
Earlier this year, the behavioural science team at Thinkerbell ran a small experiment for BCF, the Australian fishing retailer. Shoppers tried to buy a lure that wasn't available and saw one of three messages: "Sold out," "Out of stock," or "Gone fishing, be back soon."
It was the same lure, same empty shelf, three different messages.
Of the people who saw "Gone fishing," 43% said they'd still buy from the store.
"Out of stock" got 25%.
"Sold out" got 16%.
Of note, only 5% of the "Gone fishing" group said the experience frustrated them (B&T).
A fair caveat before anyone screenshots that: it was an online simulation measuring what people said they would do, not what they bought. Thinkerbell says so too. But the gap is wide, and it points the same way as decades of research on how people decide. I'd bet on it.
The wording is part of the strategy
Behavioural economists call this the framing effect. Amos Tversky and Daniel Kahneman showed how people make different choices when identical information is presented in different ways. This is important; the options don't change, the presentation or the language does.
Most founders I work with treat wording as just fact, not thoughtful communication, not as strategy, and not considering framing. Let's face it, the copy gets written by whoever is free in the moment. And for my e-commerce clients, the out-of-stock message is what the website platform shipped with.
1% can make the difference. 1% more effort can save the sale. Words matter, they are what connect with the buyer, and if they're wrong, everything else doesn't matter as much either.
Why "sold out" backfires
"Sold out" is a scarcity message, and scarcity is psychological. When something is hard to get, we assume it's worth having, and sometimes we want it more. So "sold out" tells the buyer someone else got there before they did, but that's where the conversation ends.
"Gone fishing" delivers the same information, but makes it feel temporary, fun and connects. It also sounds like a store run by actual people you might enjoy coming back to, people that know and care about people. Nowhere does it say "please wait." People waited anyway. They simply put in the effort. One sentence that changed everything.
How you can change the conversation
You probably don't sell fishing lures; that doesn't really matter. Every business has dead-end moments, with most running on the default message.
A hotel says "No availability." A charter operator says "Aircraft unavailable for selected dates." A restaurant's booking widget says "Fully booked." A contact form says "Error: invalid input."
Each one is an opportunity to change the language, change the framing, and change the outcome.
Now try the same moments written on purpose:
"No availability" becomes "We're full that weekend. The Friday before still has a room with your name on it."
"Aircraft unavailable" becomes "That date's spoken for. Tell us your window, and we'll find you a way up."
"Fully booked" becomes "Tonight's full of happy people. Tomorrow at 7 is wide open."
None of these are trying to be funny, but they take the effort to connect and give your customer more options to consider, they are not lost, we are hoping they will reconsider. Each one keeps the fact, keeps the scarcity signal, and adds a next step (an option). A buyer's motivation peaks when you tell them no; instead of sending them to your competitor, give them another option.
The caution of cute
Personality is not a free pass. "Gone fishing" worked in the example because it's a fishing store, so the joke belongs to the brand. A private jet company writing "Oopsie, we're all booked!" would torch trust it spent years earning. Consider your audience and the caliber of the decision.
A general rule: the wording should sound like your best salesperson talking to a buyer they like, warm and already thinking about the next booking. If you or your best salesperson wouldn't say it, don't use it.
And don't fake it. Claiming "only 2 left" when there are 200 is how trying to use scarcity becomes a trust issue. Framing works on true facts, so use it on true facts.
Next steps you can try this week:
Find every place your business says 'no'. Out-of-stock pages, fully booked calendars, error messages, waitlist confirmations, even the limp "we'll be in touch" email after someone fills in a form. Most companies have more of these than they realize, and they are an opportunity.
Then ask two questions of each one:
Does it tell the buyer what to do next?
Does it sound like us, or like the software we bought?
Rewrite the ones that are default. It may be an afternoon of work, but it's aimed at retaining the customer you're most likely to lose: someone who already wanted to buy but could not.
Wording is the one piece of marketing you fully control and can change before lunch.
If you want to talk about your behavioral marketing strategy, let's have a conversation.
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