Soon (26.01.2023), a new Consumer Protection Act will come into effect, requiring some changes to online stores. The biggest change is the display of the lowest price the company used in the last 30 days before applying the reduced price.
The article that defines the change:
(1) When reducing the price of goods, the company indicates the previous price and the reduced price.
(2) The previous price is considered to be the lowest price the company used in the last 30 days before applying the reduced price.
(3) Notwithstanding the previous paragraph, for goods that have been on the market for less than 30 days, the previous price is considered to be the lowest price at which the company offered the goods before the price reduction during the period the goods were on the market.
(4) Notwithstanding the second paragraph of this article and the previous paragraph, in the case of continuous gradual price reduction, the previous price from the second paragraph of this article is considered to be the price that was the lowest price at least 30 days before the first reduced price in the continuous gradual price reduction.
(5) If the percentage of reduction is published in a range, the highest percentage of reduction must cover at least one quarter of the value of all goods on sale.
More information about the Consumer Protection Act: https://www.pisrs.si/Pis.web/pregledPredpisa?id=ZAKO7054
Unfortunately, the Magento platform does not store price change data, so with only basic functionality, it is not possible to display the lowest price in the last 30 days. Since there is no pre-developed module available for Magento 1.9 / Openmage version, we have developed a module for our clients.
Operation of the Magento module for the lowest price in the last 30 days
The module is designed to save the price change and calculate the lowest price in the last 30 days when the price (promotional or regular) on an item changes. It also saves prices that change with the activation of a promotional rule in the catalog. It stores prices for each store view that is edited.
When we have data on the price history of an item, we can then have the option to display it on the item page, category, or both.

We have also edited the administration so that you now have an additional tab when editing an item and can track all changes in the past.

Additionally, a display of all price changes and the option to delete entries has been made. Entries can be removed individually or all at once.

The module price is €180 + VAT. You can order the module and its installation via email podpora@degriz.net.
The price does not include additional modifications or adjustments of the module. Payment for the module is for one Magento installation, which can have several different stores. Copying and further distribution of the module is not allowed. All future updates of the module will be available to buyers for free. The module is not compatible with Magento 2.x version and changing prices directly through the MySql database.
If you are looking for modules for other platforms, some of these have already been developed and are available below:
Magento 2 module: https://store.webkul.com/magento2-eu-price-indication-directive.html
Opencart module: https://outnet.si/modul-najnizja-cena-30-dni-eu-omnibus/
https://www.qstom.si/opencart/moduli/zgodovina-spremembe-cen
Note: We did not develop or test the above two modules.
Data for the past price is available in the Magento store from the installation of the module and the first change of the item or upon activation of the promotion in the catalog.
Updated 25.1.2023
Legal notice! The module manufacturer is not responsible for incorrect processing of the lowest price data. Test the module after installation and check its operation. Also not responsible for errors related to server settings and limitations, as well as errors in the operation and configuration of the Magento system .
