Explore the advanced validation rules

You can use two different ways to check field errors using PHP (For example you can add validation to check if Field1 < 100 and Field2 < 100)

Using WooCommerce Hooks, please read the article by clicking here -> https://altoswebsolutions.com/blog/more-validation-using-wooprice-calculator-woocommerce
Using WPC Hook (Described in this article)

This example code will work for WPC >= 2.3.0. You can add this code by installing Code Snippets Plugin function custom_awspc_filter_calculate_price_errors($errors, $params){ $calculator= $params[‘calculator’]; $userData= $params[‘userData‘]; /* Applying rule to calculator with ID 6 (Get the ID from the Edit page of the calculator in the URL bar) */ if($calculator->id == 6){ /* Check if Field 1 > 100 && Field 2 > 100 */ if($userData[‘aws_price_calc_1’] > 100 && $userData[‘aws_price_calc_2’] > 100){ /* Display the error */ $errorMessage= “Field1 must be < 100 and Field2 must be < 100”; $errors[‘aws_price_calc_1‘][]= $errorMessage; $errors[‘aws_price_calc_2‘][]= $errorMessage; } } return $errors; } add_filter(“awspc_filter_calculate_price_errors“, “custom_awspc_filter_calculate_price_errors“, 10, 2); $params is a PHP array with the following:

$params[‘priceRaw‘]: The result price without formatting
$params[‘product’]: The product
$params[‘calculator’]: The calculator
$params[‘data’]: The user data (Some values could contain ID instead of real user values)
$params[‘userData‘]: The user data without any transformation
$params[‘outputResults‘]: The output fields