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BlockCart: Checkout Validation

BlockCart: Checkout Validation

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Block checkout for PO boxes, ZIP codes, order limits and B2B rules. Test rules before going live with customers.

  • BlockCart: Checkout Validation Screenshot
  • BlockCart: Checkout Validation Screenshot
  • BlockCart: Checkout Validation Screenshot
  • BlockCart: Checkout Validation Screenshot
  • BlockCart: Checkout Validation Screenshot
  • BlockCart: Checkout Validation Screenshot
  • BlockCart: Checkout Validation Screenshot
  • BlockCart: Checkout Validation Screenshot
  • BlockCart: Checkout Validation Screenshot
  • BlockCart: Checkout Validation Screenshot
  • BlockCart: Checkout Validation Screenshot
  • BlockCart: Checkout Validation Screenshot
  • BlockCart: Checkout Validation Screenshot
  • BlockCart: Checkout Validation Screenshot

About the BlockCart: Checkout Validation

BlockCart helps you block orders that don't fit your business rules before they reach checkout. Set up cart validation rules to prevent PO box deliveries, restrict specific ZIP codes or postal codes, and control order limits without any coding required. Create checkout restrictions based on minimum order quantity (MOQ), minimum cart value, or maximum purchase limits. Block products or collections by country, customer tag, login status, or company for B2B stores. Use wildcards for flexible ZIP code blocking. When checkout validation triggers, customers see a clear custom error message explaining what needs to change. Test your rules with tagged customers at real checkout before making them live. You can also hide, sort or rename payment methods based on cart contents, customer type, or shipping address. Import and export rules to manage multiple restrictions easily.
Launched: May 22, 2026

Key features

  • Block PO box addresses and specific ZIP or postal codes, with wildcards
  • Set MOQ, minimum order amount, cart value and maximum purchase limits
  • Hide, sort or rename payment methods by cart, customer or address
  • Test rules at real checkout with a tagged customer before going live
  • B2B rules by company, customer tag or login; import and export rules

Integrations with:

  • Checkout,
  • Shopify Admin

Pricing of BlockCart: Checkout Validation

FREE DEV

Free

  • Free for dev stores
  • Free for Shopify Plus sandbox stores

Standard Plan

$3.99 / month

or $38.30/year and save 20%
  • Mix Different Conditions
  • Unlimited Checkout Validation Rules
Install the App

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