A staged chat screenshot has become a standard advertising device. Brands show a customer raving about a product, a support bot resolving an issue, a group of friends planning a trip around a service. The format borrows the trust people extend to conversation, and it works. It also runs into a set of rules that most marketers never think about until a complaint lands: advertising disclosure, endorsement rules, platform brand guidelines and consumer protection law. This piece maps the terrain in general terms. It is written for a global audience, so it deliberately avoids country-specific conclusions.
This is not legal advice, and why that matters
Nothing here is legal advice, and reading it does not create any kind of professional relationship. Advertising, trademark and consumer law differ substantially between jurisdictions and change over time; a practice that is routine in one country can be regulated in another. The aim of this article is to name the questions you should be asking and the general principles that most legal systems share, not to answer them for your specific campaign. If an advertisement carries real commercial risk, the only responsible move is to consult a qualified lawyer in the jurisdiction where it will run.
The reason to say this plainly is that “is it legal?” has no single answer. The honest version of the answer is almost always “it depends on where, on what the ad claims, and on how a reasonable member of the audience understands it.” Everything below is written inside that frame.
The first question is disclosure, not the mockup
Regulators in many jurisdictions focus less on whether a conversation was staged and more on whether the audience is likely to be misled about it. A obviously stylised, cartoon-ish chat used as a design motif reads as decoration. A screenshot presented as a real, unedited customer exchange reads as a factual claim: that this conversation happened, with this person, saying this. The same pixels can fall on either side, and what moves them is context — surrounding copy, visual style, and whether anything signals that the image is illustrative.
This is why the general principle most systems share is about impression rather than technique. Ask what a reasonable viewer would take the image to mean. If the answer is “a real customer said this,” then the mockup is functioning as a testimonial, and testimonial rules apply. If the answer is “this is a designed illustration of our product,” the exposure is usually different.
Testimonials and endorsements are the highest-risk use
The riskiest pattern is a fabricated conversation that presents invented praise as though it came from a real customer. In many jurisdictions, advertising rules require endorsements to reflect genuine opinion and to be based on real experience, and they require a material connection between an endorser and the advertiser to be disclosed. A made-up chat attributed to an invented person sits awkwardly against those principles, and a chat attributed to a real, identifiable person without their permission is worse.
The safer construction is to separate the illustration from the claim. Use a mockup to show how a product feels to use, with a visible label that it is an illustration; keep the actual testimonial claims in a channel where you can substantiate them. Many brands do exactly this — the chat image sells the experience, the copy carries the claims, and the two are not fused together.
Platform brand guidelines are not law, but they bind you
Separate from any statute, each messaging platform publishes its own rules about how its name, logo and interface may appear in third-party material. Those are private terms, not legislation, but they are enforceable through trademark law, app store policies, advertising network reviews and, in practice, the platform simply complaining to your host or ad platform. Using another company's interface to suggest that they endorse your product is a common tripwire.
For mockup work, the practical reading is to avoid implying a partnership, a sponsorship or an official status that does not exist. The deeper questions about recreating interfaces at all — trademark, trade dress and the boundaries of fair use — are their own topic, covered in the interface recreation guide.
Consumer protection and the “likely to mislead” test
Most consumer protection frameworks converge on a similar idea: advertising must not be likely to mislead a reasonable consumer about a material fact. A fake chat can mislead in quiet ways. A staged exchange that implies a discount is permanent, a treatment is medically effective, or a financial return is typical is not primarily a screenshot problem — it is a claims problem, and the format simply carries the claim in a more believable wrapper.
Because the underlying test is about the impression created, the general advice is to audit what your mockup implies, not just what it literally says. Invented numbers, invented urgency, and invented third-party praise are the usual ingredients of a complaint, regardless of how well or badly the interface was drawn.
Comparative and review-style advertising
A related pattern is the mockup that stages a comparison: a customer praising your product and disparaging a named competitor, in the form of a chat. Comparative claims carry their own rules in many places, and they usually require the comparison to be truthful, substantiated and not misleading. Fabricating a conversation in which an invented person dislikes a competitor is a weak foundation for a claim you may be asked to prove.
Even where no specific comparative rule applies, naming a competitor in a staged conversation raises trademark and unfair-competition questions. As a default posture, keep fabricated chats about your own product and your own category, and let comparisons live in copy you can defend.
Copyright and trademark inside the advertisement
A mockup that redraws a well-known chat interface brings two intellectual property questions into the ad at once: the company's trademarks in its name and visual identity, and any copyright in its icons, fonts or artwork. Trademark law generally cares about whether use creates confusion about source or implies endorsement; copyright generally cares about copying protected expression. The two overlap but answer different questions, which is why “it is just a layout” is not automatically a complete defence.
When the ad's whole purpose is to look like a real conversation on a specific platform, the risk that a viewer reads the interface as an endorsement of your product is higher than when the chat is generic. That is a contextual judgement, not a bright line, and it is exactly the kind of judgement a lawyer should make before a large campaign runs.
A practical checklist before you publish
- Label illustrative content. If the conversation did not happen, make the ad visually signal that it is a representation rather than a record.
- Do not invent endorsers. Attribute praise only to real people who gave it, and disclose paid or material relationships where required.
- Check the platform's own guidelines. Many brands publish rules about using their name and interface; read them before, not after.
- Audit the implications. List the factual claims your mockup implies and confirm each one is true and substantiated.
- Separate illustration from claims. Let visuals sell the experience and keep the verifiable claims in copy you can stand behind.
- Keep a record. Note where each image came from and what it was labelled, so a later question has an answer.
When to actually ask a lawyer
General principles are useful for shaping a habit; they are not a substitute for advice on a specific campaign. If your advertisement makes health, financial or safety claims, if it names a competitor, if it uses a real person's name or likeness, or if it deliberately mimics a major brand's interface to borrow its trust, the sensible threshold for getting professional advice has been crossed. The size of the campaign and the jurisdiction it runs in decide how much that matters.
Within those limits, the spirit of the rules is easier to follow than the letter. Do not use a staged conversation to make someone believe something untrue. Our own position on that is set out in the Acceptable Use Policy, and the reasoning behind the hardest case — fabricated financial notices — is in why we refuse to make fake bank alerts. Marketing use of a labelled illustration is a different act from passing off an image as a record, and keeping that difference visible is most of the work. See also the site terms for how that applies to tools built here.