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Create Checkout Validation Rules in Blockit App(Full Tutorial)

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September 09, 2025

Step 1: From the Blockit App > Dashboard >  Click Create Validation Rules button in the top-right to start.

create rule

Step 2: Enter a Rule Name to identify the rule (e.g., “Address Check”).

rule name

Step 3: Add a Short Description for internal reference (e.g., “Ensures address fields are filled”).

short descripton of rule

Step 4: Select when to Trigger rule:

  • Land on the checkout page from cart: Validates customer details as soon as they enter the checkout page from the cart.
  • Completing checkout: Validates customer details right before the order is submitted for processing.

trigger rule

Step 5: Validation Customization Rules:

  • Choose All Below to require all listed conditions to be met for the rule to trigger.
  • Choose Any Below to trigger the rule if any single condition is met.

validation customization rule

Step 6: Select the Rule type from the list – Choose the type of validation from the dropdown (e.g., Customer, Order Details, Cart Details, Shipping Address).

rules types

Step 7: Select Rule Condition: Pick a specific condition based on the selected rule type (Greater than or equals &  Less than or equals).

select rule conditions

Step 8: After selecting a Rule Type, add specific details in the corresponding box below.

For the Email address rule, enter the email value (e.g., “[email protected]”) to validate against.

Input a Validation Error Message (e.g., “Please enter valid email address”) to display if the condition fails.

enter rule details

Step 9:  Click Add Sub Condition to include additional criteria if needed.

add sub condition

Step 10: Sub condition is created now, add the details as per the needs.

sub rule create

Step 11: To create a new condition that matches with existing ones, click Add Condition to add another rule.

add condition

Step 12: New rule is created. Add the details as per the needs.

multiple conditions match

Step 13: Add the global error message.

global error message

Step 14: Additionally, Create a new tier for different conditions. (Optional)create new tier

Step 15: Add the rules and details in the new created tier(Optional)

new tier is created

Step 16: Determines what happens if an error occurs during checkout execution.

  • Allow customers to complete checkout: Select this option to let the customer proceed with the order despite the error.
  • Block customer from completing checkout: Select this option to prevent the customer from submitting the order until the error is resolved.

final action

Step 17: Click on “Create” to save the rule.

save