woocommerce_trash_(post_type) action-hookWC 1.0

Usage

add_action( 'woocommerce_trash_(post_type)', 'wp_kama_woocommerce_trash_post_type_action' );

/**
 * Function for `woocommerce_trash_(post_type)` action-hook.
 * 
 * @param  $id 
 *
 * @return void
 */
function wp_kama_woocommerce_trash_post_type_action( $id ){

	// action...
}
$id
-

Where the hook is called

WC_Product_Data_Store_CPT::delete()
woocommerce_trash_(post_type)
woocommerce/includes/data-stores/class-wc-product-data-store-cpt.php 429
do_action( 'woocommerce_trash_' . $post_type, $id );

Where the hook is used in WooCommerce

woocommerce/includes/wc-order-functions.php 1074
add_action( 'woocommerce_trash_order', 'wc_update_coupon_usage_counts' );
woocommerce/includes/wc-order-functions.php 998
add_action( 'woocommerce_trash_order', 'wc_update_total_sales_counts' );
woocommerce/src/Internal/Caches/OrdersVersionStringInvalidator.php 67
add_action( 'woocommerce_trash_order', array( $this, 'handle_woocommerce_trash_order' ), 10, 1 );
woocommerce/src/Internal/Caches/ProductVersionStringInvalidator.php 70
add_action( 'woocommerce_trash_product', array( $this, 'handle_woocommerce_trash_product' ), 10, 1 );
woocommerce/src/Internal/Caches/ProductVersionStringInvalidator.php 76
add_action( 'woocommerce_trash_product_variation', array( $this, 'handle_woocommerce_trash_product_variation' ), 10, 1 );