php - Disabling increase stock for specific order status changes

one text

Solution:

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 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.

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