Researching Serial Numbers for MTO Production

Hello,

I work for a make-to-order manufacturing company.  We currently use Project Systems and PP for production.  We use the Project Definition + WBS Element as the serial number of our finished, sellable product (FERT).

I am trying to investigate using SAP serial number feature instead, but everything I am reading (SAP Help Files) seems more geared toward mass-production.  Can anyone direct me to some information on a MTO scenario for serial numbering?

Thanks very much!

Timothy