Lowest price in the last 30 days on WooCommerce

What has to be shown

When a discount is advertised, the lowest price the item was sold for in the 30 days before that discount must appear next to the new price. The rule comes from EU Omnibus Directive 2019/2161 and is transposed into Croatian consumer law.

The number is not the regular price and not the all-time low. It is the lowest price in the thirty-day window preceding the discount.

Why WooCommerce cannot do it alone

WooCommerce stores only the current state. A product has _regular_price and _sale_price, and when you change them the previous value is simply gone.

So a plugin that hands you a finished number on day one is either reading _regular_price, which in ERP-fed stores is the manufacturer's MSRP, or writing today's price as if it had also been yesterday's.

How this plugin computes it

Once a day, at an hour you choose, it walks the catalogue and records the price the buyer actually sees: the result of wc_get_price_to_display(), including tax and after every filter other pricing plugins apply.

• Within one day the lowest price seen is kept, so a discount that started at ten in the morning does not erase the higher price that stood before it.
• The window is rolling: every recorded day no older than thirty days, and the minimum among them.
• Below two distinct recorded days nothing is claimed.
• History is kept for a hundred days, so widening the window leaves no gap.
• Variations are computed individually; a variable parent takes the lowest among its variations, and only when every one of them has a value.

What shows while there is no history

Nothing. A blank next to the price does less damage than a number you cannot back up.

Instead, the admin lists products advertised with a discount but without cover, and the same count appears as a dashboard warning.

Importing history from an ERP

History cannot be invented, but it very often already exists somewhere. Import takes one row per product and day, and days the plugin recorded itself are never overwritten.

The whole recorded history exports back to CSV in one click, as the document you hand over when proof is requested.

SKU;YYYY-MM-DD;PRICE
0100071;2026-09-10;25.00
0100071;2026-09-11;24.50

Where it prints in the store

It inserts itself under the product price on both classic and block themes, with no code. Only for custom themes that still show nothing are there three outputs that work anywhere.

The wording is a setting, and the klikoteka_cijene_redovi filter gives the theme the final say.

[klikoteka_cijene]

<?php do_action( 'klikoteka_cijene', $product ); ?>

<?php echo klikoteka_cijene_html( $product ); ?>