How can I edit Cash on Delivery (COD) orders? Should I listen to orders/create webhooks?

[sillycube]

I am now listening to orders/paid webhooks and editing the orders. It works quite well for credit card prepaid orders. But COD orders don't trigger orders/paid webhooks and my app doesn't edit these orders.

How can I edit these orders? Should I listen to orders/create webhooks and edit these orders?

I can't find information in Placing a test order. Also, I can't test COD orders since only real transactions can be made to test COD orders. Now, I'm using Bogus Gateway

I try to create a new store but I can't install my development app to the store. What's the correct way to develop and test COD orders?