We rarely have return of product after it has been shipped and invoiced and the invoice paid, so we haven't bought the RMA program.  Now we are having to deal with the return of a serial numbered product that has already been paid for.  Does anyone have a suggestion on how to deal with this so that we can get the product back into inventory with the correct serial number?

Just enter a SO for the part # with a negative qty. When you release the order it will ask if you want to add serial control. Put in the serial # and it will go back into inv. You will only have issues if you have to neg. backflush it, bur I beleive this has been fixed?
 
John