I'm hoping to be able to make our automatic purchase order numbering be more intuitive for someone just looking at the PO number.

Ideally Id like it to be Job#-CostCode#-JobPOSequence, so for example:

Job number 90504, Cost code 2200

Automatically generates 90504-2200-001

I could accept Job#-JobPOSequence

Automatically generates 90504-001

Is this possible?