Unexpected stacking
Product, order, and shipping discounts can combine in ways you did not intend.
Free tool · No signup
Put a number on
discount leakage.
Explore an estimate of unintended discounts using your own assumptions.
Your store
Use your own estimate for unintended discounts. If unsure, compare 5% and 20% to explore a range.
Estimated monthly leak
$234.00
$2,808.00 per year
Total discounts / month$2,340.00
Share of monthly revenue0.45%
Discounted orders / month240
Average discount / discounted order$9.75
An estimate from your inputs, not your store’s actual data or a prediction of savings.
Explore PromoBeacon →Check your settings
How exposed
are your codes?
Select the settings that apply to your discounts.
Where leaks come from.
Misconfigured promotions
A percentage, amount, or eligible product setting can make a promotion more generous than intended.
Shared private codes
Codes can reach audiences you did not intend. PromoBeacon can flag usage spikes, but cannot determine why usage rose.
Common questions.
How is the estimate calculated?
Orders × average order value × share of orders discounted × average discount rate × unintended share. The annual figure is twelve times the monthly estimate.
Does this tool connect to my store?
No. It uses only the numbers you enter here.
Does it store my inputs?
This calculator code does not save or transmit your inputs. Your entries reset when you reload the page.
Where do I find real numbers?
Review your Shopify sales reports by discount and inspect orders with multiple discounts. Use those figures to update your assumptions.
PromoBeacon
Spot discounts that
need a second look.
Read-only alerts for unusually deep discounts, stacking, reach, and code-usage spikes.