Handling Existing SFG Stock in FG Work Orders (ERPNext v16)

If I already have stock available for the semi-finished goods (SFG), why does the system still ask me to produce the SFG again when creating a Work Order for the finished good (FG)? How can I manage this situation?

@LukmanulHakkeem

You should consult Production Planning where you can control over ordering.

I need to consume that sfg with that FG at that time only my stock in SFG will reduce