Changes the Courier Service of an Order based on a number of Conditions
Param Value: The name of the courier service you want to change it to
Example Param: ParcelForce 24
Example Use Case:
You want to change the courier service based on some more complex rules that aren't covered by the standard courier service selection logic.
e.g. You offer local delivery in your town so you want to change it for Local Delivery for any orders where the Town == Chelmsford
You want to change the courier service based on the Day and Time of day that an order has been received: