A sales order is input then a production order is executed to shop floor, If I go into net requirements it shows double the demand, demand for sales order and demand for production order issued. How is this possible?
Well it depends on many things but if you were to sell 1 of item a and make 1 of item a then supply and demand would balance. Can you post a screen shot of the net requirements? Do you have as BOM with circulatory in it?