wc vendors pro add new field for product form custom field add edit product

functions.php

/* child theme functions.php */
add_action( 'wcv_after_product_details', 'wcv_custom_product_condition_field' );
function wcv_custom_product_condition_field () {
WCVendors_Pro_Form_Helper::input( array(  
	'type'         => 'text',
	'post_id'      => $object_id, 
	'id' 	       => 'wcv_custom_product_condition', 
	'label'        => __( 'Product Condition', 'wcvendors-pro' ), 
	'placeholder'  => __( 'Please specify if your product is NEW or USED', 'wcvendors-pro' ), 
	'desc_tip'     => 'true', 
	'description'  => __( 'Is your Product New or Used?', 'wcvendors-pro' ), 
) );
}

add_action('woocommerce_product_meta_start', 'wcv_product_condition', 2);
function wcv_product_condition() {
    $output = get_post_meta(get_the_ID(), 'wcv_custom_product_condition', true ); 
    echo '<p>'.'Product Condition: ' . $output . '</p>';
}