20% on everything, without a nasty surprise on the invoice.
Limit discount risks
With every addition to your range, every new business customer and every additional sales channel, the risk of unplanned discount costs on percentage campaigns grows. A single large order with a public 20-percent code can exceed a calculated campaign budget per redemption many times over.
What the OPAL solves for you
1.Percentage vouchers stay percentage-based on the outside, while internally they are capped at a fixed maximum amount per series.
2.The setting is made directly in the familiar voucher series management; multi-currency conversion and the checkout note are built in.
3.The OPAL comes from the platform vendor itself, works without core overrides and without external dependencies.
Before / After
A 20-percent code hits a €1,500 cart and tears €300 out of your margin that nobody accounted for.
The same code hits the same cart and deducts a maximum of €30, exactly as planned.
Controlling trims your campaign from '20% on everything' to '5% on everything', because nobody can control the outliers.
The briefing stays '20% on everything', because the maximum cost per redemption is fixed.
A customer redeems the 20-percent voucher on €800, sees only €30 deducted and calls customer service.
She sees 'Max. discount: €30.00' right next to the voucher and knows immediately.
Part of the OPAL family
OPALs are prebuilt project accelerators from OXID eSales that serve as a solid foundation and need to be adapted to your system landscape.

Features at a glance
OXID
<OPAL/>
Maximum amount per voucher series
You set a maximum discount amount per voucher series. The voucher stays percentage-based but is automatically capped as soon as the calculated discount reaches your limit.
Automatic multi-currency conversion
You store the maximum amount once in the default currency. For orders in other currencies, the OPAL converts it automatically based on the stored exchange rate.
Set directly in the voucher series
The two new fields appear in the familiar voucher series form in the administration area.
Optional checkout note
Can be activated via checkbox: a note about the maximum amount appears right next to the voucher line in the checkout. It works in any theme where the corresponding Twig block is included, even without active JavaScript.
Automatic input correction
Negative values entered by mistake are automatically normalized to 0 on saving, without an error message or interruption to the workflow.
Bilingual DE and EN
All administration fields, help texts and the checkout note are available in German and English from installation. Ready to use for DACH and international shops.
Who is this OPAL for?
Marketing / editorial
In the campaign briefing, when the discount percentage has to be defended against controlling.
What the OPAL delivers here
You can push through bolder percentage promotions because the budget behind them is defensible. The messaging stays '20%', not '5%'. The optional checkout note makes your campaign transparent and professional on the outside, instead of customers wondering and complaining to you.
Frequently asked questions
Price
€10/month
OPALs are also available in subscription packages.
