Code-Snippets-Functions/Execute a function on a child site/WooCommerce/set-checkout-fields-maxlength.txt

add_filter( 'woocommerce_checkout_fields', 'wc_checkout_fields_custom_attributes', 9999 );

function wc_checkout_fields_custom_attributes( $fields ) {
	$fields['billing']['billing_company']['maxlength'] = 15;
	return $fields;
}