Stop WooCommerce For Reducing Stock On Abandoned Admin New Order - wordpress

Question

If an admin goes to create an order but abandons it, the stock level is still reduced.
Steps to reproduce:
install WordPress
install WooCommerce
create simple product and tick "manage stock?" and set stock level to 10
view on front-end (see screenshot before.png)
as admin create new order but don't save it (new -> order -> add item -> exit page)
view on front-end (see screenshot after.png)
Notice stock level has been reduced even those order wasn't saved.
Is there anyway to avoid this?
Before.png:
After.png

Answer 1

I have worked on this issue and wrote a basic code for that.
Hooks used: "woocommerce_order_item_add_action_buttons" for Admin Order Add Item(s) and "woocommerce_process_shop_order_meta" for Admin Order Creation/Update.
First part: Stop reducing stocks of items that added while the order has not been created.
// define the woocommerce_order_item_add_action_buttons callback
function action_woocommerce_order_item_add_action_buttons( $order ) {
$orderID = $order->ID;
//check if this is the admin manual order creation
if(get_post_status($orderID) == "auto-draft" && get_post_type($orderID) == "shop_order")
{
foreach( $order->get_items() as $item_id => $item )
{
$product_id = $item->get_product_id();
$variation_id = $item->get_variation_id();
$product_quantity = $item->get_quantity();
if($variation_id == 0)
{
$product = wc_get_product($product_id);
wc_update_product_stock($product, $product_quantity, 'increase');
}
else
{
$variation = wc_get_product($variation_id);
wc_update_product_stock($variation, $product_quantity, 'increase' );
}
// The text for the note
$note = __("Stock incremented due to the auto draft post type. Stock for each item will be decremented when this order created.");
// Add the note
$order->add_order_note( $note );
}
}
};
// add the action
add_action( 'woocommerce_order_item_add_action_buttons', 'action_woocommerce_order_item_add_action_buttons', 10, 1 );
Second Part: Reduce stocks of items that added if order is created.
add_action( 'woocommerce_process_shop_order_meta', 'woocommerce_process_shop_order', 10, 2 );
function woocommerce_process_shop_order ( $post_id, $post ) {
$order = wc_get_order( $post_id );
//check if this is order create action, not an update action
if(get_post_status($post_id) == "draft" && get_post_type($post_id) == "shop_order")
{
foreach( $order->get_items() as $item_id => $item )
{
$product_id = $item->get_product_id();
$variation_id = $item->get_variation_id();
$product_quantity = $item->get_quantity();
if($variation_id == 0)
{
$product = wc_get_product($product_id);
wc_update_product_stock($product, $product_quantity, 'decrease');
}
else
{
$variation = wc_get_product($variation_id);
wc_update_product_stock($variation, $product_quantity, 'decrease' );
}
// The text for the note
$note = __("Stock decremented for all items in this order.");
// Add the note
$order->add_order_note( $note );
}
}
}
Tested and works fine. I hope this will help you. Have a good day.