Does the Omnibus 30-day rule apply to flash sales?

Short answer: yes. A flash sale — a short, time-limited discount — is still an announcement of a price reduction, so the Omnibus 30-day lowest-prior-price rule applies just as it does to any other sale. The brevity of the offer does not exempt it. Under Article 6a of the Price Indication Directive, as amended by the Omnibus Directive (2019/2161, applying from 28 May 2022), whenever you announce a price reduction you must indicate the prior price, defined as the lowest price you applied during at least the 30 days before the reduction. Nothing in the rule turns on how long the reduced price lasts. A two-hour flash sale, a 24-hour deal, and a two-week promotion are treated the same way for the purpose of the reference price. What this means in practice The struck-through "was" price in your flash sale must be the genuine lowest price you charged in the preceding 30 days — not an inflated figure introduced just before the event, and not the recommended retail price dressed up as your own prior price. If you show "−40% for 3 hours only", that 40% must be calculated against the real 30-day low. Do not raise the price shortly before the flash sale to make the discount look bigger — the reference is the lowest price in the last 30 days, so the bump is ignored (or worse, exposes the display as misleading).Keep a price history. If challenged, you must be able to evidence that the reference price was genuinely the lowest applied over the 30-day window.Percentage and "save €X" wording count too, not just was/now displays — the same 30-day basis applies to how the reduction is expressed.Back-to-back flash sales are a red flag. If a product is almost always "on flash sale", the reference price you keep striking through may not reflect a genuine higher prior price, which regulators can treat as misleading. A quick worked example A gadget sold at €50 for the last 30 days. You run a 4-hour flash sale at €35 and advertise "was €50, now €35". This is fine: €50 was genuinely the lowest price in the prior 30 days. But if the gadget had actually been €40 for most of that month and you quietly lifted it to €50 the day before, the prior price is €40 — and advertising "was €50" during the flash sale would be non-compliant. For the full mechanics, see our Omnibus overview and complete Omnibus guide. The rule is about honesty of the reference price, and a flash sale is no exception. This answer is provided for educational purposes only and does not constitute legal advice. National implementations and derogations vary and change over time; consult a qualified lawyer in the relevant jurisdiction before making compliance decisions for your business.

Which Country's Rules Apply When I Sell Across the EU?

The short answer: EU-wide regulations give you a single baseline that applies everywhere, but a number of national obligations follow the country you are selling into. When you ship across the EU, you meet the EU rules once, then add the destination country's specifics for each market you serve. EU-wide regulations are the baseline Regulations such as the GPSR (product safety), the Omnibus rules (price transparency and reviews), the PPWR (packaging) and the European Accessibility Act apply across all 27 member states. Their core requirements - a safe product, a responsible person in the EU, honest price reductions, accessible e-commerce - do not change from one country to the next. Get these right and you have your common foundation for the whole single market. National transposition adds detail Where EU rules take the form of directives, each country writes them into national law and can add detail. Germany's price-display rules sit in the Preisangabenverordnung; Italy's consumer rules are in the Codice del Consumo; Spain uses the Texto Refundido consumer statute; France layers on strong consumer-protection practice. The substance is harmonised, but the exact wording, disclosures and enforcement bodies are national. Language follows the customer Consumer information must generally be in the language of the destination country: French for France (the Toubon law), Italian for Italy, Spanish (and sometimes co-official regional languages) for Spain, German for Germany. This covers product descriptions, safety warnings, instructions and the required pre-contractual information. A single English storefront is not enough for these markets. EPR is per destination country Extended Producer Responsibility registrations are national and depend on where your goods and packaging end up. If you ship to Germany, you register in the LUCID packaging register before selling. If you ship to France, you deal with the REP system and a unique identifier via ADEME, plus packaging EPR. Italy uses CONAI; Spain applies Royal Decree 1055/2022. You need the right EPR registration for each destination country you supply, not one blanket registration. In practice Meet the EU-wide regulations once as your baseline.For each destination country, add local language, transposition detail and EPR registration.Confirm specifics with the named national authority, as they change over time. See our country hubs for France, Italy, Spain and Germany for the destination-specific detail.

The Omnibus 30-day rule explained

The "30-day rule" is the best-known part of the Omnibus Directive. It governs how you must present the "before" price whenever you advertise a discount, and it has applied across the EU since 28 May 2022. What the rule actually says Under the amended Article 6a of the Price Indication Directive, any announcement of a price reduction must state the prior price. The prior price is defined as the lowest price the trader applied during at least the 30 days before the reduction. So the "was" figure in a "was / now" display is not the last price you charged, nor a recommended retail price — it is the lowest price that was actually in force at any point in the preceding 30 days. Worked example: a straightforward sale A pair of headphones sold at €80 continuously for the last two months. You launch a sale at €60. The lowest price in the previous 30 days was €80, so "was €80, now €60" is correct and compliant. Shoppers see a true saving from a price the product genuinely held. Worked example: a price that moved around Now imagine the same headphones were €70 for three weeks, then €80 for one week, and you advertise a sale at €65. The lowest price in the last 30 days was €70, so the prior price you must reference is €70, not €80. The compliant display is "was €70, now €65". Using €80 would overstate the saving and breach the rule. Worked example: the "inflate then discount" trap A classic non-compliant pattern: an item sits at €40 for weeks, you raise it to €60 for two days, then advertise "was €60, now €45". Because the lowest price in the last 30 days was €40, the honest reference is €40 — and €45 is higher than that. There is no genuine reduction, and presenting €60 as the "was" price is precisely the manipulation the rule was written to stop. Progressive discounts For discounts that deepen in stages during one campaign — say 10%, then 20%, then 30% off — the prior price stays fixed to the lowest price applied before the first reduction. You do not re-baseline at each stage. If the pre-sale lowest price was €100, every stage references €100, so the deepest stage shows "was €100, now €70", not "was €80, now €70". What this means in PrestaShop PrestaShop's default price display strikes through the base or list price, which may not equal the 30-day lowest. To comply, the "was" figure your theme renders needs to be driven by the lowest price genuinely applied in the previous 30 days — usually via a module or override that stores price history. Review your specific-price and catalogue-price rules so a struck-through figure is never a price shoppers were never charged. The full walkthrough is in the complete Omnibus guide, and the concept itself is defined in our reference-price FAQ. Educational content, not legal advice. Verify against the official text and your national implementing rules.

What is the 'prior price' or reference price?

Under the Omnibus Directive, the prior price (often called the reference price) is the figure a discount is measured against. It is defined as the lowest price the trader applied during at least the 30 days before the price reduction. This matters because the "was" figure in a "was / now" display must equal that 30-day lowest — not the most recent price, and not a manufacturer's recommended retail price. If your product was €90 then briefly €100 in the last month, the reference price for a new sale is €90, because that was the lowest price actually in force. For progressive discounts that deepen over a single campaign, the reference price is anchored once — to the lowest price before the first reduction — and does not reset at each stage. This stops each new markdown looking like a fresh saving from an already-reduced figure. Genuinely individual prices, such as an automatically applied members-only rate, are treated differently from general reductions announced to all shoppers, which are firmly within the rule. For the calculation with worked examples, see the 30-day rule explained; the short definition also lives in our Omnibus hub. Educational only, not legal advice. Verify against the official EUR-Lex text.

What does the Omnibus Directive say about fake reviews?

The Omnibus Directive tackles reviews in two ways: a transparency duty and an outright ban on fakery. The transparency duty If your shop displays consumer reviews, you must state whether and how you ensure that the published reviews come from consumers who actually bought or used the product. If you only publish reviews from verified purchasers, say so clearly. If you do not verify, you must not create the impression that the reviews are verified. The fake-review ban Certain practices are added to the blacklist of unfair commercial practices, meaning they are prohibited in all circumstances with no case-by-case assessment. These include submitting or commissioning fake reviews or endorsements, claiming reviews are from real users when steps to verify were not taken, and manipulating reviews — for example suppressing genuine negative ones — to promote a product. What to do in your shop Add a short statement near your reviews explaining how you verify authenticity.Prefer a review module that can restrict submissions to verified buyers.Never buy, write or commission reviews, and never hide genuine negative feedback. See the review section of the complete Omnibus guide for PrestaShop module notes. Educational only, not legal advice. Verify against the official text.

Guide

Omnibus & Price-Reduction Rules in France

By Compliance Editorial Team Updated July 4, 2026 6 min read

Omnibus Directive

If your PrestaShop store advertises discounts to consumers in France, the Omnibus Directive — and specifically the 30-day prior-price rule — governs how you may present those reductions. France transposed the directive into its national consumer code, and enforcement is handled by an active regulator. This guide explains how the rule applies in France, which authority enforces it, and the French display conventions to follow.

For the full EU picture, see our Omnibus overview and the detailed complete Omnibus guide. For wider French rules — including language and other consumer-law obligations — see our France country hub.

The Omnibus baseline

The Omnibus Directive is Directive (EU) 2019/2161, which applies from 28 May 2022. Its most operationally demanding element for online shops is the 30-day lowest prior-price rule: whenever you announce a price reduction, you must indicate the prior price, defined as the lowest price you applied during at least the 30 days before the reduction. This stops the familiar trick of inflating a “was” price shortly before a “sale” so the discount looks larger than it really is.

The rule is not limited to “was/now” displays. It applies to any announcement of a price reduction — a percentage off, a “save €X” claim, a strikethrough, or the word “sale”. If you show “−30%”, that percentage must be calculated against the lowest price applied in the preceding 30 days, not against an artificially high anchor.

France: the Code de la consommation

France implements the Omnibus price-reduction rules through its Code de la consommation, the consumer code. The 30-day prior-price obligation is reflected in the French rules on announcing price reductions, so when you advertise a discount to French consumers, the reference figure you display must correspond to the lowest price applied over the 30 days preceding the reduction. The directive’s mechanics carry through into French law; the French code is where the enforceable wording lives.

France also has a strong tradition of regulated sales periods — the twice-yearly soldes — and of rules around clearance and promotional pricing. The 30-day prior-price rule operates alongside these: even within an official soldes period, the reference price you strike through must still respect the lowest-prior-price principle. The existence of a national sales season does not exempt you from showing an honest reference price.

Enforcement: the DGCCRF

Enforcement in France is led by the DGCCRF (Direction générale de la concurrence, de la consommation et de la répression des fraudes), the directorate responsible for competition, consumer affairs and fraud control. The DGCCRF actively monitors online pricing practices, conducts investigations and campaigns, and can require corrections and impose sanctions for misleading price-reduction announcements. Deceptive “fake discount” practices are exactly the kind of conduct it targets.

For a merchant, the practical implication is that you must be able to evidence your reference prices. If the DGCCRF questions a struck-through figure, the onus is on you to show it was genuinely the lowest price applied in the relevant 30-day window. A durable, timestamped price-change record is therefore essential — an assurance that “that’s our normal price” will not withstand scrutiny if your own price history says otherwise.

French display conventions

French shoppers expect clear, honest price presentation, and French practice leans towards showing the reference price explicitly. When presenting a reduction to French consumers, keep the display transparent and consistent with the 30-day rule.

Show the reference (prior) price clearly alongside the reduced price, using the genuine 30-day low as the struck-through figure.
Base any percentage or “économisez €X” claim on that same prior price.
Present prices in euros and in French, consistent with French language and labelling expectations for consumers.
Keep RRP or “prix conseillé” comparisons separate from your-own-price reductions, and make sure any recommended price quoted is genuine.
Do not present a manufacturer’s recommended price as if it were your own struck-through prior price — that blurs two different regimes and misleads the consumer.

Because France operates under the Toubon law and strong French-language expectations for consumers, ensure your promotional wording and any explanatory notes are in French. Clarity and honesty in the reference price are the through-line: a French shopper should be able to see, at a glance, what the product genuinely cost before the reduction.

Implementing it in PrestaShop

Specific prices and the reference figure

PrestaShop applies discounts as specific prices, and themes typically strike through the product’s base price as the “former” price. The compliance risk is that the base price is not automatically the 30-day low — if you have run recent promotions, the true prior price may be lower. For France, you must ensure the displayed reference corresponds to the genuine lowest price of the preceding 30 days, adjusting the reference or using an Omnibus module that computes it for you.

Price history and evidence

Keep a per-product price history so you can prove the 30-day low if the DGCCRF asks.
Drive the displayed reference price from that history, not from the static base price.
Retain the records — being able to evidence the prior price is as important as displaying it.

Soldes and promotional campaigns

During French soldes or other campaigns, keep your reference prices honest. For a progressively increasing reduction, the prior price is generally the lowest price before the first reduction was applied; check the applicable national treatment for gradual campaigns. Do not treat a sales season as licence to inflate reference prices.

France Omnibus checklist

Ensure every struck-through reference equals the lowest price applied in the prior 30 days.
Apply the same basis to percentage and “save” claims, not just was/now.
Keep price-history evidence ready for the DGCCRF.
Present prices and promotional text in French and euros.
Keep RRP / prix conseillé comparisons separate and genuine.
Respect the 30-day rule even during soldes.

Configure your specific prices and price history so the reference figure is always the genuine 30-day low, present everything clearly in French, and keep your evidence. Start with the Omnibus overview, work through the complete Omnibus guide, and see the France hub for the wider French rules.

This guide is provided for educational purposes only and does not constitute legal advice. The Omnibus rules are transposed into the French Code de la consommation and enforced by the DGCCRF, and the detail can change over time. Consult a qualified lawyer in France before making compliance decisions for your business.

Official reference: https://eur-lex.europa.eu/eli/dir/2019/2161/oj