I have followed this guide :
and created a new order state and status called "delivered" in my admin. Basically these are used to track which shipments are getting delivered and which are returned. As the shipments get delivered I want to mark them as delivered in the system so that I can keep track. This happens after the order has been invoiced and shipped.
Now the problem is when I try to set the state as "delivered" it keeps going back to "complete". How do I fix this ? How do I change the state to delivered after it has been completed.
I am attaching a screenshot of what happens : http://awesomescreenshot.com/0913gf6981