WordPress at Your Fingertips
action is not described

woocommerce_product_set_stock_status action-hook . WC 1.0

Usage

add_action( 'woocommerce_product_set_stock_status', 'action_function_name_4711', 10, 3 );
function action_function_name_4711( $product_id, $product_stock_status, $product ){
	// action...
}
$product_id
-
$product_stock_status
-
$product
-

Where the hook is called

WC_Product_Data_Store_CPT::handle_updated_props()
woocommerce_product_set_stock_status
woocommerce/includes/data-stores/class-wc-product-data-store-cpt.php 673
do_action( 'woocommerce_product_set_stock_status', $product->get_id(), $product->get_stock_status(), $product );

Where in WP core the hook is used WooCommerce

woocommerce/includes/class-wc-post-data.php 37
add_action( 'woocommerce_product_set_stock_status', array( __CLASS__, 'delete_product_query_transients' ) );
woocommerce/includes/wc-term-functions.php 511
add_action( 'woocommerce_product_set_stock_status', 'wc_recount_after_stock_change' );