
Hi hamedOI,
I don't understand the specials you mean in the sales orders.
But I do know the changes made on STD BOM won't influence the orders that use this bom before this change, like esitimated production orders.
If i change a bom which is used in production orders, i'll go to find these orders and try to use the "Copy" button in production BOM interface to replace current bom with the lastest and re-estimate it.
regards,