Checkout Address Validator

Checkout Address Validator

Pricing
$4.99/month. Free trial available.
Rating
5.0 (1)
Developer
Schwan I/O

Featured images gallery

Checkout Address Validator – Block Incomplete Addresses
  • Address validation live on the store, with rules to manage
  • Per-country rules for postal code and house number
  • Setting a custom house-number rule for one country
  • Checkout Address Validator – Block Incomplete Addresses
  • Address validation live on the store, with rules to manage
  • Per-country rules for postal code and house number
  • Setting a custom house-number rule for one country
  • Buyer messages shown at checkout when a field is missing
  • Testing an address against the saved rules

Prevent failed deliveries. Block checkout when an address is missing a postal code or house number.

Express wallets — Shop Pay, PayPal, Apple Pay, Google Pay — skip your address form, so orders arrive with a street but no house number, or no postal code at all, and the delivery fails. A missing house number only produces a warning at checkout, which the buyer can ignore. This app turns it into a block: checkout cannot be completed until the address is fixed, wallets included. Rules are set per country, and buyer messages ship in 33 languages.

Express wallets — Shop Pay, PayPal, Apple Pay, Google Pay — skip your address form, so orders arrive with a street but no house number, or no postal code at all, and the delivery fails. A missing house number only produces a warning at checkout, which the buyer can ignore. This app turns it into a block: checkout cannot be completed until the address is fixed, wallets included. Rules are set per country, and buyer messages ship in 33 languages. more
  • Blocks checkout when a postal code or house number is missing
  • Validates express wallet checkouts: Shop Pay, PayPal, Apple Pay, Google Pay
  • Every country you ship to, with Shopify's postal-code rule prefilled
  • P.O. boxes, packstations and pickup points are never blocked
  • Buyer messages in 33 languages, editable for every store language

Languages

English, German, French, Italian, and Spanish

Works with

Categories

Pricing

Choose the plan that best fits your business.

Standard

$4.99 / month

or $49.99/year and save 17%

Features

  • Block orders missing a house number
  • Require a postal code per country
  • Works on Shop Pay, PayPal & Apple Pay
  • Buyer messages in every store language
  • Custom house-number rule per country

7-day free trial

All charges are billed in USD. Recurring and usage-based charges are billed every 30 days.

Reviews (1)

Overall rating
5
Counts per rating level
  • 100% of ratings are 5 stars
    1
  • 0% of ratings are 4 stars
  • 0% of ratings are 3 stars
  • 0% of ratings are 2 stars
  • 0% of ratings are 1 stars
All reviews
August 17, 2026

Does exactly what it says. Setup was straightforward and it's been running smoothly since.

HORL
Germany
13 minutes using the app

Support

App support provided by Schwan I/O.

Resources

Developer

Schwan I/O

Freiburg, DE

Launched

August 17, 2026

Data access

This app needs access to the following data to work on your store. Learn why in the developer's privacy policy .

View customer data:

Device and activity data

  • Device and activity data

    Geolocation, IP address, browser and operating system

View staff and contributor data:

Store owner

  • Store owner

    Name, email address, phone number, physical address

View and edit store data:

Orders, Shopify Functions

  • View orders

    Shipping information

  • Edit Shopify Functions

    Cart and checkout validations

  • View other data

    Locales, Shopify Markets settings

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