Add custom parameters to WooCommerce products exported to Specter

wc-specter-send-custom-product-data

/**
 * Filter hook wc_specter_send_custom_product_data
 * Add custom parameters to products sent to Specter.
 * The product data will be passed to Specter both on single product update (save_post) 
 * and on manually triggered product exports (from the Specter settings page).
 * Contact Specter for detailed information on what parameters their system accepts.
 **/
 
add_filter( 'wc_specter_send_custom_product_data', 'my_custom_product_data', 10, 2 );
 
function my_custom_product_data( $args, $product ) {
	$args['barCode'] = utf8_decode( get_post_meta( $product->id, 'my_custom_meta_field_1', true ) );
	$args['buyPrice'] = utf8_decode( get_post_meta( $product->id, 'my_custom_meta_field_2', true ) );
	return $args;
}