Validation of values - incorrectly entered parameter values

Manual Input, Heureka XML Feed, MALL XML Feed, Products - Setup and Management, API

When uploading or entering products into the MALL system, it is very important to include all additional information about the products, including parameters and their values.
However, it may happen that you add incorrect values to the products and it is necessary to correct these data.

To make it easier for customers to select the desired goods, we will evaluate incorrectly entered parameter values on a regular basis.
Find out more in the article below.

Adding parameters to products serves to improve customer experience and customer orientation on the product page of the website. After the parameters and values have been filled in correctly, the customer has the opportunity to filter a specific product type, e.g. by colour.

It is therefore necessary that the parameter values are written in the exact format defined by MALL.
A product that does not have parameters is automatically dropped from the product offer to customers who search for a specific type of product via the side filters.

Parameters, values and where to find them?

Almost all MALL categories contain a set of PARAMETERS such as - COLOR, SIZE, MATERIAL, etc., according to the specifications of the category. Each of these parameters contains a defined set of VALUES that you can use.

The only exceptions are parameters starting with the prefix MP e.g. MP_COLOR, MP_SIZE, MP_MATERIAL, etc... These parameters do not have fixed values defined by MALL and their format is discussed during product implementation with a specific onboarding specialist.

A complete list of all parameters can be found in the MALL Partner Portal in the section Category.
After selecting a specific category, you can export all MALL-defined parameter values in JSON or XLS format.
You can also get a total list of all parameters your chosen categories and their values find out from our API.

Erroneous entry of values

An error parameter value is a value that differs from those defined by MALL (wrong format, font size, illegal characters, not in local language) or is completely missing from the list of used parameter values.

Examples of incorrect value writing:
Value defined by MALL:Erroneous value entry:
RedRed or Red or red
white/orangewhite, orange or white-orange
running shoesRunning

Due to such incorrectly entered values, unwanted duplicates are created in the filters, the data is inconsistent and the goods are difficult to trace for the customer, see the picture below.

CSV with erroneous values

MALL partners will be sent an export of all incorrectly entered values in csv format.

  • Column A: MALL ID of your company
  • Column B: Your company's product ID
  • Column C: MALL Product ID
  • Column D: MALL Category ID
  • Column E: name of the parameter in the MALL database
  • Column F: the value you entered for the product is incorrect and it needs to be repaired

Correction of erroneous values according to connection

MI - Manual Input

In the product details in the MALL Partner portal, we only offer MALL-defined parameter values. Just select one or more values from the options offered.

In case of an incorrect entry, the product cannot be saved and the portal will alert you to this invalid value.


When connecting via MALL XML Feed, it is necessary to edit the incorrect values directly in the product feed.

Erroneously written parameter value:

Correctly written parameter value:

A complete list of all parameters can be found in the MALL Partner portal in the section Category, or in the API see description below.


Similarly to the connection via MALL XML Feed, the parameter value must be modified directly in the structure of the uploaded product.

Complete inventory of all parameters selected categories and their values can be found in our API documentation.

In the documentation you can also find endpoint, which you can use to get details about the desired category (category ID and name), mandatory sorting parameters and their values (category conditions), without which the product will not be properly displayed on the site, and other available parameters and their values (other parameters) from our API in one call.

Heureka XML Feed

When connecting via Heureka XML Feed, error values can occur when managing (moving) products. It is therefore necessary to follow the articles Heureka XML feed - matching categories, parameters and values and creating variant products and Heureka XML Feed - move products.

In case you have any further questions, you can contact us via Help Centre.

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