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Block Non-Latin Characters

The Non-Latin Characters rule helps you identify checkout addresses that contain non-Latin characters. You can configure this rule to allow accented characters, display a custom error message, and choose where the message appears on the checkout page.

How to Configure the Rule​

  1. From your Shopify admin, open Chek: Address Validator.
  2. Go to Checkout Rules.
  3. Select the Non-Latin Characters rule.
  4. Turn on Rule execution to activate the rule.
  5. Under Conditions for rules execution, choose whether to Allow accented characters like à, é, ö.
  6. Choose where you want the error message to appear:
  • Top of the Checkout page
  • Directly below the input field
  1. Enter your preferred message in the Error message field.

For example:

Please specify address with Latin characters only. Accented characters allowed.

The custom error message can help customers understand what needs to be corrected before they complete their checkout.

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Address Validation Providers​

Chek uses a world-class address database and works with industry-leading address validation providers, including USPS, FedEx, DHL, and other trusted shipping partners, to help verify addresses with a high level of accuracy and reliability.

Allow Accented Characters​

The Allow accented characters like à, é, ö option lets you decide whether accented Latin characters should be accepted.

When this option is enabled, customers can use accented characters in their address while the rule continues to check for other non-Latin characters.

Customize the Error Message​

You can customize the error message to match your store's tone or provide clearer instructions to customers.

For example:

Please specify your address using Latin characters only.

Or:

Please enter your address using Latin characters. Accented characters are allowed.

Once the rule is active, Chek will apply the configured validation rule during checkout and display the error message according to your selected settings.

If you have any further questions about address validation or how Chek processes addresses, please contact our support team at [email protected].