Hello @Pankaj, Thank you for getting in touch with us.
In the current flow, when the stock of an out-of-stock product is updated, subscribers are automatically notified via email. However, there isn’t a built-in option to customize or update the stock quantity within that notification flow.
If you’re looking to implement custom changes, you can refer to the relevant section of our code here: https://github.com/multivendorx/woocommerce-product-stock-alert/blob/940276b6b256503cb5bbf2da50ad87e4d2ee5ccb/classes/Subscriber.php#L92
You can modify the logic as needed based on your requirements.
Please let us know if there’s anything else we can help you with.
Regards
Sangita