Lowering the SFC quantity In SAP DM

I request to little the sfc oregon physique quantity, the desired effect is the idiosyncratic presses a fastener connected the pod, this changes sfc/build quantity to lucifer the done qty, erstwhile the done quantity is deed connected this oregon the adjacent operation. A last confirmation of CNF is received successful the ERP and the bid is moved retired of the pod. This is connected a accumulation bid successful a discrete environment.  

I was capable to bash this successful MII by lowering the physique quantity but can't find an api successful DM to bash this.

Thanks