How do I expire unused unique codes cleanly after the timer?

Question

I'm struggling with managing unique discount codes that don't get used before their expiration. My current system leaves unused codes lingering in my e-commerce platform, which creates clutter and potential security risks. I need a systematic approach to automatically remove or deactivate these codes once their timer expires, without manual intervention. What are the best practices for cleanly expiring unique, time-limited discount codes across different e-commerce platforms and scenarios?

Muhammed Tüfekyapan · Accepted Answer

Should I Frame Discounts as Percentage Off or Dollar Amount Saved?
The Rule of 100 is one of the most reliable conversion principles in discount psychology: present the discount framing that produces the larger-looking number. This is because customers process price information through a heuristic "is this a big or small number?" rather than careful mathematical comparison. The larger-seeming number creates stronger perceived value regardless of mathematical equivalence.

The Rule of 100 in Action

Product Price
% Discount
$ Amount
Better Framing
Why

$20 product25% off$5 off25% off25 > 5
$50 product15% off$7.50 off15% off15 > 7.5
$100 product10% off$10 offTest bothEqual numbers
$200 product10% off$20 off$20 off20 > 10
$500 product12% off$60 off$60 off60 > 12

When to Show Both
For maximum impact, show both formats with the larger one emphasized:

-Low-price product: 20% OFF (save $8) - percentage is the hero
-High-price product: Save $45 (10% off) - dollar amount is the hero
-Dual display always outperforms single format by 5-10% because it satisfies both percentage-anchored and dollar-anchored shoppers

Growth Suite: Tiered Storewide Discounts
When running tiered promotions, Growth Suite's Tiered Storewide Discounts allow you to display percentage off across the board while automatically applying the mathematically correct discount amount to each order. The system handles the Rule of 100 display logic for you - showing percentage on lower-priced items and dollar amounts on higher-priced items based on configurable thresholds.

How do I expire unused unique codes cleanly after the timer?

TL;DR - Quick Answer

Complete Expert Analysis

Should I Frame Discounts as Percentage Off or Dollar Amount Saved?

The Rule of 100 in Action

When to Show Both

Growth Suite: Tiered Storewide Discounts

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Muhammed Tüfekyapan

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Use Cases

Product Price	% Discount	$ Amount	Better Framing	Why
$20 product	25% off	$5 off	25% off	25 > 5
$50 product	15% off	$7.50 off	15% off	15 > 7.5
$100 product	10% off	$10 off	Test both	Equal numbers
$200 product	10% off	$20 off	$20 off	20 > 10
$500 product	12% off	$60 off	$60 off	60 > 12