Track true cost of goods sold, enforce minimum margins, and automatically block discount stacking at checkout — without writing a single line of code.
Profit Guard evaluates every cart at checkout and blocks discount codes that would push the order below your minimum margin.
Bulk-import or sync costs from Shopify, edit per-variant, and keep a full audit trail — past orders stay accurate even when costs change.
Set a rule once (“block discounts below 20% margin”) and Profit Guard handles it on every order, with email alerts on flagged sales.
Start free. Upgrade only when your store outgrows the plan limits.
50 orders / month
500 orders / month
2,000 orders / month
Unlimited orders
No. The discount-blocking logic runs as a Shopify Function in an isolated runtime with a strict execution budget (Shopify holds Functions to a few milliseconds). The margin calculation happens via a single background fetch to our App Proxy that runs in parallel with the rest of checkout — buyers will not perceive any delay.
Only when your rules tell it to. Profit Guard never blocks a buyer from checking out at the regular price — when a rule fires, the buyer just can't use that one margin-killing discount code. They see a neutral message and can remove the code to complete their order ('This discount code can't be used with the items in your cart').
Every COGS change is preserved with effective dates. Past orders always use the cost that was in effect at the time of the order, so your historical margin numbers stay accurate even after you update prices.
No. Profit Guard does not collect customer names, emails, addresses, or any personally identifying information. We only read product, variant, cart-line, and order-aggregate data. See our Privacy Policy for full detail.
Uninstall from your Shopify admin at any time. All your data is permanently deleted within 48 hours per Shopify's GDPR requirements.
Install Profit Guard free and set your first rule in under a minute.
Install from Shopify App StoreEmail us at profitguardd@gmail.com. We respond within one business day.