Pricebook turns the customer tags you already use into wholesale price lists. Map a tag like wholesale to a pricing group, add percent-off or fixed prices with quantity breaks, preview the exact price any customer will pay, then publish. Pricing runs inside Shopify checkout as a native discount function — no scripts in your theme — and logged-in wholesale customers see their tier pricing right on the product page. Unlimited groups and rules, with no caps to outgrow.

• Map customer tags to unlimited pricing groups — no sync step, no caps
• Quantity breaks: up to 10 tiers per rule, percent off or fixed unit price
• Logged-in customers see their tier pricing right on the product page
• Runs inside Shopify checkout as a native discount — no theme scripts
• Daily check that live pricing still matches what you published

Stores break quietly. A discount stops applying mid-promotion. A sale keeps running after it ends. A wholesale group starts seeing retail. Nothing errors, no dashboard turns red — the first sign is usually an unhappy customer. Storeproof checks your store the way a buyer experiences it: it prices real test carts through Shopify's own engine, as the exact customers you describe, and compares the result to what you set up. When reality stops matching, you get one plain-language email — first.

• Checks prices as the real customer — logged-in groups, tags, and guests alike
• Catches ended sales still running, and discounts cutting deeper than you set
• Watches live promotions daily, so a dead discount can't quietly burn a campaign
• Re-checks everything when an app is removed or your theme changes
• No theme code, nothing created, nothing left behind — checks only