Checkout Guard · Request a quote & hide prices for Shopify
Checkout Guard enforces your cart and checkout rules with a Shopify Function, on Shopify's own servers. Limit quantities per customer, require a minimum order, cap weight, block countries, or keep products from being ordered together. No theme code, nothing to bypass, and it works on every Shopify plan.
Can't be bypassed
Rules run server-side, so a fast click, a second tab or a custom theme can't get around them.
See why it blocks
The rule tester builds a cart and shows exactly which rule stops it, and the message the customer reads.
Never breaks checkout
If Shopify can't run a rule, the sale goes through — your store keeps selling.
Free plan available. Works on Basic, Grow, Advanced and Plus.