Warning Letter for Missing Unit Prices – What to Do?

Your guide to the right response and future prevention

Jakob Feinböck, Founder of ProductbayMay 10, 20268 min read
☝️Key takeaways
  • Missing unit prices are a top Abmahnung trigger — cease-and-desist costs typically run €1,000–€3,000 per case.
  • EU Directive 98/6/EC and the German PAngV require unit prices (per 100g, per liter, per meter) for all measured goods.
  • Unit prices must sit next to the selling price in the same font size — in your shop, on Amazon, on OTTO.
  • A PIM system like Productbay stores unit prices as structured attributes and pushes them correctly to every channel.
Received a Letter from a Lawyer?. A warning letter for incorrect or missing unit price information is a shock for many online retailers. The good news: With the right response, you can limit the damage. Even better: With the right tools, you can completely avoid future warning letters. In this article, you will learn how to respond to a unit price warning letter, which typical mistakes you must avoid, and how modern product data management systems can protect you preventively.

What is a Unit Price?

Unit price information is legally required in Germany (§2 Price Indication Regulation, PAngV). It enables consumers to compare products regardless of package size or quantity.

Unit prices must be provided for goods sold by weight, volume, length, or area – meaning most food products, cosmetics, cleaning products, and many other items.

Examples of Correct Unit Prices:

  • For solid goods by weight: "Unit price: €9.95/kg" (e.g., coffee, cereals, rice)
  • For liquid goods by volume: "Unit price: €12.50/liter" (e.g., beverages, oils, shampoo)
  • For length measurements: "Unit price: €2.99/m" (e.g., textiles, cables)
  • For area measurements: "Unit price: €15.90/m²" (e.g., carpets, wallpaper)

Why Are Unit Prices Subject to Warning Letters?

Unit price violations are among the most common reasons for warning letters in e-commerce. This is mainly due to the complexity of the requirements and the many potential error sources in manual data maintenance.

The 5 Most Common Mistakes with Unit Prices:

  • Unit price missing completely – especially common for newly listed products or imports from supplier catalogs
  • Wrong reference unit used – e.g., "€/100g" instead of "€/kg" or vice versa
  • Unit price not updated – after price changes, the unit price was not recalculated
  • Inconsistent presentation – different formats in various categories or on different pages
  • Technical errors with variants – products with multiple sizes are missing unit prices for individual variants

Received a Warning – What to Do?

1. Stay Calm – Don't Act Hastily

A warning letter is unpleasant but not the end of the world. Don't let yourself be pressured and don't sign anything rashly. First check whether the warning is justified.

2. Don't Sign Immediately

The enclosed cease-and-desist declaration is often overly formulated and can force you into far-reaching obligations. Do not sign it without legal review. A modified cease-and-desist declaration is sufficient in most cases.

3. Don't Pay Immediately

The demanded warning costs are often excessive. Don't pay immediately but have the claim reviewed. In many cases, the costs can be significantly reduced.

Get Professional Help. Contact a specialized lawyer or Händlerbund. They can review the warning letter, formulate an appropriate response, and defend against excessive cost demands. The costs for initial consultation are usually much lower than the consequences of an incorrect response. Get Help from Händlerbund

Correct Implementation in Your Online Shop

After a warning letter, it is crucial not only to fix the specific violation but to solve the problem systematically. Here are the most important rules for correct unit price information:

The 4 Golden Rules for Unit Prices:

  • Always display unit price in immediate proximity to the sales price – on product pages, in category listings, and in the shopping cart
  • Use standard units – €/kg, €/liter, €/m, or €/m² (not €/100g or €/100ml, except for very small quantities)
  • Update automatically with price changes – manual maintenance leads to errors and inconsistencies
  • Maintain for all product variants – when a product is available in multiple sizes, each variant needs its own unit price

Prevent Future Warnings

The best strategy is to avoid unit price errors from the outset. Modern product data management systems can be crucial here.

How Productbay Protects You from Unit Price Warnings

Productbay is an AI-powered product data management system specifically developed for the requirements of German e-commerce, with special focus on food retail compliance. It helps you automatically fulfill compliance requirements:

  • Automatic unit price calculation – based on sales price, quantity, and unit
  • Validation with every update – the system automatically checks whether unit prices are present and correct
  • Consistent presentation across all channels – whether webshop, marketplaces, or price comparison sites
  • Automatic updates with price changes – unit prices are automatically recalculated
  • Warnings for missing data – you are notified when unit prices are missing or incorrect
  • Support for complex variants – automatic calculation even for products with many variants

Special Requirements for Food Retailers

Especially in food retail, unit price information is particularly important and complex. In addition to unit price information, additional requirements apply here:

Additional Requirements Under LMIV:

  • Nutritional information (nutrition table) according to LMIV (Food Information Regulation)
  • List of ingredients in descending order by weight
  • Allergen labeling – highlighted presentation of allergens
  • Best-before date and storage conditions
  • Origin information for certain product categories

Productbay also supports you with these extended compliance requirements and ensures that your product data is always legally compliant.

Conclusion

A warning letter for missing unit prices is annoying but also an opportunity to reconsider your product data processes. With the right response, you can limit the damage. Even more important is preventive protection: Modern PIM systems like Productbay automate unit price maintenance and help you avoid future warning letters.

Invest in systems that automatically ensure compliance – the costs are significantly lower than the consequences of a warning letter.

Frequently Asked Questions

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