How to tell a customer your product is not the right fit

The question that is really a warning

You run a small invoicing tool for freelancers. A prospective customer, a translator named Ines, writes: “I bill clients in euros, dollars and pounds, sometimes on one invoice. Does your tool handle that?” It does not. It supports a single currency per invoice, and converting between them is manual.

You could answer the question she did not ask: “We have a beautiful template library and great support!” That is easier to write and keeps the sale alive. It also leaves her to discover the limit after she has moved her clients over.

Why saying the drawback is not as risky as it feels

Across three experiments, a study published online in 2022 found that two-sided messages, which mention a drawback alongside a benefit, raised purchase intentions through higher perceived credibility, but only among consumers who were skeptical of advertising. Less skeptical consumers responded about equally to both versions, so mentioning a drawback did not lower their intentions. We could not read the ads used, so we do not know how serious the drawbacks were. These were advertising experiments, not a reply to one buyer’s question, so they show a pattern in how messages are read, not what Ines will do.

There is also a legal and practical floor. The FTC’s policy statement says advertisers must have a reasonable basis for objective claims before they make them, and that an express claim such as “tests prove” needs at least that level of support. It is a U.S. enforcement policy about advertising, so it does not tell you what to say to Ines. It is a reminder that claims about what a product does should rest on something you have checked.

Trust in buyer-seller relationships also matters over time. A survey of more than 200 industrial purchasing managers found that trust in the supplier firm shaped expected future dealings, although after controlling for past experience and supplier performance it did not influence the current supplier choice. That concerns industrial buyers, not freelancers, and it measured trust, not disclosure of limits. Our inference is that an honest answer may matter more for the next purchase than for this one.

A way to answer

Start with the decision. Say whether the product does what she asked, and do not wrap the answer in other features. Then give what you know and how you know it. If a workaround exists, say what it costs her in time. If another kind of tool would fit better, you can say that without naming a competitor.

• Answer the question asked, with the limit in the first two sentences.
• Say what you have tested or know, and what you have not tried.
• Describe any workaround honestly, including its cost in effort.
• Give a way to check before paying, such as a trial, a sample or a refund window you actually offer.
• Leave the decision with the customer.

The reply that steers around the limit

This answer is friendly and nothing in it is false. What it does is move attention away from the question that could end the sale. The buyer may not notice, which is the problem: if she signs up and then needs multi-currency invoices, her first experience of your product is a surprise.

The reply that states the trade-off

This answer gives her the fact that matters, with its cost, and still lets her decide. It admits what you have not tested and offers a low-risk way to look. It may lose the sale, and that is a real cost, but she leaves knowing what the product is.

If the customer pushes, or leaves

Ines may reply, “Could you add it?” Be honest about what you know: “It isn’t on our plan for this year, so I wouldn’t buy on that hope. If that changes I’ll tell you.” Do not promise a feature to hold a sale.

She may ask for a recommendation. You can say what kind of tool to look for, such as one that stores a rate per invoice, and leave it there. If she goes quiet, let it be quiet. A short note a few weeks later is fine: “If your billing changes, I’m happy to talk again.”

If someone is angry because they bought on the strength of an earlier, unclear answer, apologize for the part that was your error and offer the refund your policy allows. Do not argue about what they should have asked.

What the evidence does not show

The advertising experiments measured reactions to written messages, not a seller replying to one customer, and the effect appeared mainly among skeptical consumers. The purchasing-manager survey concerns industrial buyers. The FTC statement sets a floor for advertising claims in the United States and says nothing about how to phrase an answer. Ines, her tool and the single-currency limit are invented, and an honest answer can still lose a sale.

The advice does not cover regulated products, such as financial or medical ones, where specific disclosure rules apply. In those cases, follow the rules and take professional advice first. The practice linked below uses a different product and customer, so you can try the same order of facts.

The example wording and the order of steps are practical guidance, not research findings, and nothing here shows that Leetsoul or these steps cause better outcomes.