When a Customer Order is created, its priority located in tab "Order Details" is preset with customer's priority located in Customer/Sales/SALES tab.
With using the operation "Determine Customer Order" the priority is recalculated, based on the parameters and their priorities defined in the most-specific and active matching Customer Order Priority Rule.
The algorithm first identifies the most matching and active rule in this order:
In a second step the algorithm calculates the resulting priority based on its parameters and their priorities within the rule from Step 1.
There must exist at least one active and matching rule to be able to calculate a priority. If no rule matches or priority resulting from matching rule is NULL then priority of customer order is set back to priority of customer.
Priority of customer order was recalculated and is a comparable basis for further Available to Promise process activities.