Hi Master,
   Generally, we will maintenance "Quantity Per" quantity which stand for the consumption quantity on every BOM No. on its head.
but now user want to add a constant consumption(Do not statisic quantity under product quantity)
For example:
    BOM No. :  A
    Line No .       No.         Quantity Per
   10000           A01               10
    20000          A02               20        
that means the all consumption will be as following  if the produciton Quantity is 10
    BOM No. :  A   Quantity = 10
    Line No .       No.         Quantity Per   Total Consumption 
   10000           A01               10                  10 * 10  = 100
    20000          A02               20                  20 * 10  = 200
How can I add a constant quantity,
for example:
    BOM No. :  A
    Line No .       No.         Quantity Per
   10000           A01               10
    20000          A02               20    (Constant)
  
   BOM No. :  A   Quantity = 10
    Line No .       No.         Quantity Per   Total Consumption 
   10000           A01               10                  10 * 10  = 100
    20000          A02               20                    20 
Thanks  so much.