Field help (REPSOH) 

The sales reps are initialized by the customer sales reps, then by those of the ship-to customer, if no sales rep exists in the customer record. If one of the two sales representatives is modified and there are lines in the order, the system will ask the user whether to copy the modifications to the order lines and to recalculate the commission rate. The user will also have the possibility to modify only those order lines that do not reference this new sales representative (Value choice) and therefore not to modify the commission rate for the lines that already reference this sales representative.