prefix_change_condition_field_id.php

<?php
/**
 * Use this snippet to make a product level field conditional on the value of a global field
 * On your product level field add a condition based on another product level field
 * Then enter the field and groups IDs below to swap the product level field with a global level field
 */
function prefix_get_field_ids_to_replace() {
	// You need to update the field and group IDs below
	$ids['global-group'] = 8812; // This is the ID of the global group
	$ids['global-field'] = 8813; // This is the ID of the global field
	$ids['local-group'] = 9209; // This is the ID of the product-level group that will be conditional on the global field
	$ids['local-field'] = 9209; // This is the ID of the product-level field that will be conditional on the global field
	return $ids;
}

function prefix_single_product_classes( $classes, $item ) {
	$ids = prefix_get_field_ids_to_replace();
	// Add the ID of the global field that should trigger the condition
	if( $item['field_id'] == $ids['global-field'] ) {
		$classes[] = 'pewc-field-triggers-condition';
	}
	return $classes;
}
add_filter( 'pewc_filter_single_product_classes', 'prefix_single_product_classes', 10, 2 );

function prefix_item_attributes( $attributes, $item ) {
	$ids = prefix_get_field_ids_to_replace();
	// Add the ID of the global field that should trigger the condition
	if( $item['field_id'] == $ids['global-field'] ) {
		$attributes['data-triggers-for'] = '[' . $ids['local-field'] . ']'; // This is the ID of the field that will be dependent on the global condition
	}
	return $attributes;
}
add_filter( 'pewc_filter_item_attributes', 'prefix_item_attributes', 10, 2 );

function prefix_change_condition_field_id( $field, $item, $product_id  ) {
	$ids = prefix_get_field_ids_to_replace();
	if( $item['field_id'] == $ids['local-field'] ) {
		$field = 'pewc_group_' . $ids['global-group'] . '_' . $ids['global-field'];
	}
	return $field;
}
add_filter( 'pewc_field_condition_field', 'prefix_change_condition_field_id', 10, 3 );