Which event to use in order to execute a function after a frontend order?

Question

Which event should I use in order to execute a function after a frontend order? In other module, a colleague used but I think this is for backend orders.

Answer 1

If you want to execute function after order is created use sales_order_place_after event.

If you want to execute function only when order is successful use checkout_onepage_controller_success_action event.

if you want to use event for frontend,backend also write the event in the <global> tag in the config.xml

<global>
    <events>
        <sales_order_place_after></sales_order_place_after>
        <checkout_onepage_controller_success_action></checkout_onepage_controller_success_action>
    </events>
</global>

Answer 2

you can use checkout_onepage_controller_success_action event. It will be called after the order is placed on frontend i.e. when the customer is redirected to the checkout success page