ASA CAP Code rules for translated social ads and how UK brands stay compliant

What to take away

How the CAP Code applies to translated social ads in the UK

The Advertising Standards Authority regulates advertising in the United Kingdom. It administers two codes: the CAP Code for non-broadcast ads and the BCAP Code for broadcast ads. Both sit within a framework that also covers sales promotions and direct marketing, set out in the Advertising codes published by the ASA.

Social media is squarely non-broadcast. A paid Facebook post, an Instagram Story, a TikTok video or an organic LinkedIn update from a UK advertiser falls under the CAP Code. The Non-broadcast Code sets out the rules that apply, and it grants no exemption for Welsh, Gaelic, Irish, Urdu or Polish.

If the English caption says "up to 30% off selected lines" and the Welsh caption says "30% off everything", the Welsh version is the ad that runs, and it is the one that can be complained about.

The ASA does not require every ad to be in English. It requires every ad to be clear, to be substantiated and to avoid misleading the people who see it.

A brand running a bilingual campaign in Wales, in Greater London or in Northern Ireland is running one campaign with several audience-facing versions, and each version carries the same obligations.

Territorial scope matters too. The CAP Code covers ads targeted at UK consumers, wherever the advertiser is based. A German parent company publishing a translated ad into a UK feed is within reach of the ASA. So is a UK agency buying media on its behalf.

Mapping UK rules onto a campaign before creative is written saves rework later.

Which parts of the code bite hardest on a translation

Three rules do most of the work: rule 3.1 (misleading advertising), rule 3.7 (substantiation) and rule 2.1 (recognition of marketing communications) in the CAP Code. A translation can breach any of them without the English original breaching anything.

Misleading advertising covers ambiguity and exaggeration. A loose translation that turns "helps support" into "prevents" is a misleading claim even if the translator thought the meaning was close enough.

Substantiation requires evidence before publication. If the English ad relies on a study, the translated ad needs the same study, cited the same way, with the same caveats.

Recognition covers the boundary between advertising and editorial. A translated advertorial that reads like news in one language and like an ad in another is a problem, and the disclosure has to work in the language the reader sees.

Worked example: a Welsh and English price promotion

A retailer drafts an English post: "Up to 40% off selected homeware, ends Sunday, participating stores only." The Welsh adaptation reads "40% off homeware, ends Sunday".

The first check catches the lost "up to" and the lost "selected". The second catches the lost "participating stores only". The back-translation returns "40% off homeware", which overstates the offer.

The corrected Welsh version restores the qualifiers. The evidence file holds the pricing schedule, the list of participating stores and the end date. Copy Advice reviews the corrected Welsh text before it runs.

Pre-publication checklist

Misleading claims in multilingual advertising: what the ASA rules on

The ASA's core test is whether an ad is likely to mislead the average consumer in its target audience. For a translated ad, the target audience is the language community that sees it. That means the benchmark is not the English reader's understanding but the Welsh reader's, the Gaelic reader's or the Urdu reader's.

Three failure modes recur.

Lost qualifications. English copy often carries a small-print qualifier: "results vary", "while stocks last", "available in participating stores". Translations drop these when the translator works from a short brief or a character-limited template. The claim then stands unqualified.

Upgraded verbs. Marketing English is full of soft verbs. "Supports", "helps", "designed to" and "can" become firmer in translation, particularly when the translator reaches for a natural-sounding equivalent. The claim moves from a benefit to a promise.

Invented superlatives. "One of the leading" becomes "the leading". "Popular" becomes "the most popular". Superlatives need substantiation, and a translator working without the evidence file has no way to know whether the claim can be supported.

There is also the problem of the untranslated word. Prices, dates, legal terms and product names often stay in English inside a Welsh or Gaelic sentence. That is normal practice, but it can leave a condition buried in a language the reader is not reading the rest of the ad in.

If the qualifying wording is the part left in English, the qualification may not land.

Comparative claims deserve particular care. A comparison that is lawful in the UK still has to be like-for-like, and the comparison must be understandable in the language of the ad. A price comparison that relies on an English-language convention, such as a struck-through reference price, needs the convention explained or replaced.

Finally, remember that a misleading claim does not need to have deceived anyone. The ASA assesses the likelihood of misleading, not proof of harm. That lowers the evidential bar for a complaint and raises the value of checking before publication.

ASA rulings that show how the ASA reads ad meaning

The ASA publishes its decisions in a public ASA rulings database, and it is the right place to look for precedent before a bilingual campaign goes live. Two decisions are worth knowing by name.

Paddy Power, 2018. A press and Twitter ad from Paddy Power used the line "Always bet on black". The ASA received complaints that the phrase was racially offensive, and it upheld them, finding the ad likely to cause serious offence. The ruling is a useful precedent for translated copy because it shows that a phrase can carry a meaning in the UK market that the advertiser did not intend. A literal translation of an idiom can land the same way.

Mondelez UK, 2020. An advertising campaign for Philadelphia cream cheese used the line "It's not just for breakfast". The ASA considered complaints about the campaign and the ruling turned on how the claim would be read by the audience.

Both rulings underline a single practical point. The ASA does not accept "that is not what we meant" as a defence. It asks what the ad communicated. A translation that communicates something different from the English original has changed the ad.

The database is searchable by advertiser, sector and date, and it is worth running a search on your own sector before finalising bilingual copy. If a competitor has been upheld against for a claim in Welsh or in another community language, that is a signal about how the ASA reads that claim in that market.

A keyword search on Welsh, Gaelic, Irish or Urdu can surface rulings where the ad copy was not in English, which is where translation risk shows up in the ASA's own decisions.

Advertising checks for multilingual social posts follow the same path as any other claim: find the source claim, test the wording, correct the target version and record the change. Precedent from the rulings database is the starting point for that work.

Reading a ruling for translation risk

When you read a ruling, look for the sentence where the ASA states what the ad communicated. That sentence is the benchmark. Then ask whether your translated version communicates the same thing to a reader who only reads the target language.

If the answer is no, the translation is not finished. It needs a rewrite, not a footnote.

Pre-clearance routes: Copy Advice and the AdviceOnline library

The ASA offers a free, confidential pre-publication service called Copy Advice. Advertisers, agencies and media owners can submit non-broadcast copy and get a view on whether it is likely to comply with the CAP Code. Requests go through the Copy Advice enquiry form on the ASA site, and the service aims to respond within 24 hours for most requests.

Copy Advice is not a clearance certificate. It is an opinion, and the ASA can still uphold a complaint against an ad it has advised on. But it is a documented, independent check, and it is particularly useful when the creative is in a language the in-house team does not read.

Submit the version that will actually run. Sending the English source text and describing the Welsh adaptation in a covering note defeats the purpose. The adviser needs to see the words the audience will see, including the small print and the disclosure line.

Alongside Copy Advice, the ASA maintains AdviceOnline, a free library of guidance notes organised by topic and sector. The notes cover areas such as prices, comparisons, health claims, financial promotions and recognition of marketing communications. They are written for non-broadcast ads and they apply to translated versions in the same way.

For a bilingual campaign, the sensible sequence is: draft in the source language, adapt into the target language, review the adapted version against the relevant AdviceOnline notes, then submit the adapted version to Copy Advice. That order keeps the pre-clearance request focused on the words that will run.

A disclosure policy that sets out who reviews translated copy and who signs it off makes this sequence repeatable rather than improvised. It also gives you a record if a complaint arrives months later.

Practical translation checks before a bilingual ad goes live

These are the checks that catch most of the problems. They are designed to be run by a compliance officer working with a translator, not by the translator alone.

Run these as a formal pre-release quality checks stage rather than as an informal read-through. A signed checklist is evidence of diligence, and it is far cheaper than a reprint or a takedown.

Where the CMA and consumer protection law overlap with ASA rules

The ASA is not the only body with an interest in a misleading translated ad. The Competition and Markets Authority enforces consumer protection law, and its powers come from the Consumer Protection from Unfair Trading Regulations 2008.

Those regulations prohibit unfair commercial practices, including misleading actions and misleading omissions. A translation that drops a material qualification can be a misleading omission under the regulations, not just a breach of the CAP Code. The CMA can seek undertakings and, in serious cases, take court action.

The two regimes overlap but they are not identical. The CAP Code is a self-regulatory code enforced by the ASA, which can require an ad to be withdrawn and published its ruling. Consumer protection law is statutory, enforced by the CMA and by Trading Standards. A single translated ad can attract attention from both.

In practice, the compliance work is the same. If the translated ad is accurate, substantiated and complete, it satisfies both. If it is not, the ASA route is usually faster and the CMA route is usually more expensive.

Which UK rules apply to a campaign depends on where it runs and who it targets. A campaign aimed at consumers in Wales may also engage the Welsh Language Commissioner's standards where a public body is involved.

A campaign in Scotland may touch Gaelic language policy through Bòrd na Gàidhlig. Neither changes the CAP Code duty, but both affect how a bilingual campaign is planned and reviewed.

Data protection sits alongside this. The Information Commissioner's Office enforces the UK GDPR, and a translated ad that collects personal data needs a privacy notice the reader can understand in the language of the ad. A consent flow in English attached to a Welsh ad is a weak point.

Keeping evidence for a translated social ad claim

The ASA can ask an advertiser to substantiate a claim, and the advertiser has to be able to do it. For a translated ad, the evidence file has two parts: the claim evidence and the translation record.

The claim evidence is the same as for any ad: pricing schedules, test results, survey data, certification, stock records, the terms of the offer. It has to support the claim as expressed in the translated version, not just the English version.

The translation record is what most brands lack. It should hold the source text, the target text, the translator's name and qualifications, the reviewer's name, the date of sign-off and any back-translation performed. If Copy Advice was consulted, the response goes in the file.

Keep the record for at least two years. ASA complaints can arrive long after a campaign ends, and a social post that has been deleted from the platform may still be the subject of a ruling.

Store the evidence in a form you can produce quickly. A folder per campaign, with the final creative, the evidence and the sign-off sheet, is enough. The point is to be able to answer a substantiation request within the deadline without reconstructing the campaign from memory.

For campaigns running across several UK nations, keep the language versions separate in the file. A Welsh version and an English version are two ads, and each needs its own evidence trail. That separation also makes it obvious when one version has been updated and the other has not.

It also lets you answer a substantiation request one language at a time, within the deadline the ASA sets.

Common questions