Your discounts are leaking margin.
You just can't see it. PromoLock shows you exactly what every discount costs — then stops the leak at checkout.
Shopify shows what you sold. Not what your discounts gave away.
See every leak. Then shut it down.
THE FIXDiscount-loss analytics
See exactly what you're losing — sale loss and stack loss, per code and campaign.
Checkout validator
Stop unauthorized and abused codes at checkout — before the order exists.
Discount engine
Build margin-safe offers with abuse guards, usage caps, and cart conditions.
What merchants say
Very easy to use, is able to turn off and on specific discounts. Has a lot of settings/options to choose from!
PromoLock is working really well for our needs, and the support team has been great—quick to respond and very helpful. Overall, a smooth and reliable experience.
Works perfect and absolutely needed on every Shopify site for Black Friday or other site markdowns. Only issue is how hard this was to find in the Shopify app store.