App Overview
King Checkout Validation enhances your Shopify store's checkout process by ensuring data accuracy and compliance. It automatically detects missing house or apartment numbers, blocks PO Box addresses, validates VAT/tax IDs, enforces field limits, and blocks non-Latin characters. With customizable rules based on order characteristics like value and weight, all managed in a single dashboard, the app streamlines compliance, reduces return rates, and prevents delivery issues through real-time validation.
Screenshots

Block checkout with address, phone, order limit validation, and more
Locales, customer addresses, customer email addresses
Key Features
- Run checkout and address validation for shipping and billing addresses
- Use PO box validation and detect missing house/apartment numbers
- Checkout email validation, postcode/ZIP, VAT/tax ID, and phone
- Create order limits by amount, quantity, weight, product, customer, or country
- Use keyword, regex validation, field validation, and localized errors
Best alternatives to King Checkout Validation
Blockify Checkout Customizer
Checkout rules, checkout customizer and discounts to boost AOV
Set MOQ (Minimum Order Quantity), Order Limit & Checkout Rules
Minmaxify Order Limits
Set product and collection limits on your cart
Block or validate orders in product, cart and checkout page
King Checkout Validation FAQs
No. King Checkout Validation pricing starts at N/A. For more details about King Checkout Validation pricing, check here.
