It appears as if there is a lack of intergrity in the information you are trying to pull together. Information integrity is oftern times the main issue in many areas of a solution not providing the end user with what they are needing. The sales order change is not set up to incorporate the Subreq’s. During the implementation this should have been notified as a requirement therefore it would have been caught and fixed. Instead you are now finding out that there is a broken link in the function. These are the types of things my company specializes in. We are specialist in engineering information to ensure informaiton integrity so that in your case the subreqs requirements are considered and one material can be created. Thanks and hope this helps.