Disabling increase stock for specific order status changes

Question

Currently when the order status changes to cancelled the stock of the products is increased.

I would like to disable the stock increase when the new status is cancelled but only for some previous order status (not all).

For example, when the status changes:

From processing to cancelled: Do not increase stock
From shipped to cancelled: Do not increase stock
From other-status to cancelled: Increase the stock
From cancelled to processing: Decrease the stock

So far I have tried this:

I tried remove_action with the wc_increase_stock_levels function but it's not working for me. Where am I doing wrong?

HI @Jen, could you add the code snippets that you used from the various links and where you added them to your question. It would allow us to find a solution. — shivaramanaiyer

Vincenzo Di Gaetano Vincenzo Di Gaetano · Accepted Answer · 2021-05-12T20:18:02

It is impossible to get the previous order status when updating the product stock. This is because the wc_maybe_increase_stock_levels function triggers with the woocommerce_order_status_cancelled hook that is executed before the hooks:

From these hooks you could have obtained the previous and new order status.

You can get around this in two steps:

Disable the stock increase for the cancelled status (regardless of what the previous order status was)
Set the stock increase based on one or more previous order statuses

In case you want to enable the stock increase only for orders that change the status from "other-status" (custom) to "cancelled", you can use the following code:

Replace other-status with the previous order status slug (without the wc- prefix).

add_action( 'init', 'custom_stock_increase' );
function custom_stock_increase() {
    // disable stock increase when order status changes to "canceled"
    remove_action( 'woocommerce_order_status_cancelled', 'wc_maybe_increase_stock_levels' );
    // enable stock increase when status changes from "other-status" to "canceled"
    add_action( 'woocommerce_order_status_other-status_to_cancelled', 'wc_maybe_increase_stock_levels' );
}

The code has been tested and works. Add it to your active theme's functions.php.

Disabling increase stock for specific order status changes

1 Answers