Sushinet · Guides
Shopify checkout rule guides
How to control what shows at your checkout — hide or rename payment methods, hide shipping by country or postcode, block PO boxes, and more. Each guide shows the native Shopify way, where it quietly breaks, and how to do it safely with a preview.
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How to Block PO Box Addresses at Shopify Checkout
Stop orders shipping to PO boxes at Shopify checkout — the native way, why it quietly breaks, and how to block PO boxes (with exceptions) in plain English.
Built by the app these guides use
Ruleproof turns every rule in these guides into a plain sentence you can preview and monitor before it changes a real order.
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In review for the App Store — not installable yet.