Kumar,
I got it the way you told I have a question, on creating the production order it is overwriting the value. till this point its fine.
now Is it possible to multiple Standard value with the characteristics values at the time of production order creation.
this is required as few things can not be determined at sales order level that may have impact on scheduling time (like machine)
running same product on different machines can have different run times. what i am looking is to formulate rest of things in sales order and multiply that value with Standard value maintained against machine (it should not just replace with new value but it should be the product of characteristics value and masterdata standard value against machine).
regards
CR