We are in the process of producing the same item in different plant. In one plant I will be providing with all materials in the other plant they would provide with all the materials. I have found that by having one BOM the cost is been calculated wrong since both production show the same BOM but in reality both production have different cost. How can I override the cost without do it manually, or do you know if there is any module that I can use to have 2 different BOM?