I need to create a module which can allow a user to change the string used on the front end for delivery methods and use existing delivery methods from another module. I've got a decent idea of how to the conversion and everything, but I don't know what observer event I should be using to catch the order once it's been submitted. Does anyone know which one will let me catch the order before it's placed?
Magento Order – Modify Order on Submit
edit-orderevent-observermagento-community
Best Answer
The event that is dispatch right before Magento saved the order is:
sales_model_service_quote_submit_before
You can also use: sales_order_place_before and sales_order_place_after where you know if the order pass payment method.
Using this events, you can set info in the order but you should not execute
$order->save()
because this is executed by Magento system in a transactions.