Large Family Card - Discount for KDR Holders with Card Number Verification

Price: €31 Tax excluded
€39 Tax included
Compatibility PrestaShop 1.6 – 9 full compatibility
Current version Version 1.1 dated 10/08/2026
Built for PrestaShop

Automatically grant discounts to Large Family Card (KDR) holders in your PrestaShop store. The customer enters their KDR number, the system verifies it and applies the discount. An ideal solution for stores that support large families

Store domain info
maksymalnie 100 znaków
Module installation info
23 EUR without tax (Price impact : €26)
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Information

Language versions Polski (Polish) English (English)
Requires ionCube No
Add-on delivery Automatic
Ease of installation Very easy
See demo opens in a new window

Increase customer loyalty and support large families with the KDR

The Large Family Card (Karta Duzej Rodziny) is a nationwide Polish support program for families with three or more children. With this solution your PrestaShop online store can automatically grant discounts to KDR holders once their card number has been verified. During registration or in the customer panel the customer enters their number, and the system checks that it is valid and assigns them to the appropriate discount group.

This is a solution that not only increases sales and customer loyalty, but also builds a positive image of your brand as a socially responsible company supporting large Polish families.

Key features

  • Automatic validation of the Large Family Card number entered by the customer
  • The KDR number can be entered during account registration and in the customer panel
  • Automatic assignment of the customer to a dedicated discount group after verification
  • A configurable discount level for KDR holders - percentage or fixed amount
  • The discount can be limited to selected categories or products
  • An admin panel listing verified customers and their KDR numbers
  • Informational messages about the available discount displayed in the store
  • Abuse protection - verification of the card number format and uniqueness
  • Full GDPR compliance in the processing of personal data

Benefits for your store

  • More loyal customers among large families - a group of over a million people in Poland
  • Standing out from the competition through participation in the KDR program
  • Building a positive image as a socially responsible company
  • Automation of granting discounts - no manual verification required
  • Higher conversion and a larger cart value among eligible customers

Requirements

  • PrestaShop 1.7.x, 8.x and 9.x
  • PHP 7.4 or newer
  • Compatible with most popular PrestaShop themes
  • The PrestaShop customer groups feature must be active

Installation and support

Installing the Large Family Card PrestaShop module is remarkably simple - just upload the package through the PrestaShop admin panel and configure the basic parameters such as the discount level and the customer group. Detailed documentation is included, and our technical team provides after-sales support. If you have questions or run into problems we are here to help, assisting with configuration and adapting the module to the individual needs of your online store.

Invest in the Large Family Card module and show your customers that your PrestaShop online store supports large Polish families. Increase sales, build loyalty and stand out in the market - order the module today and start offering discounts to KDR holders fully automatically!

English Free 12 month support in English

Pytania i odpowiedzi

v1.1 (08.2026) – Security and data validation improvements

v1.0 (02.2026) – Initial module release

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