The document provides step-by-step instructions for creating a bill of materials (BOM) in SAP for subcontracting. It describes how a subcontract purchase requisition can be generated manually or through MRP and converted to a purchase order. It then outlines the process of receiving finished materials from the subcontractor and recording component consumption. Key features of the Manage BOM transactional app are listed, such as creating, editing, and viewing BOMs. Finally, the document provides detailed steps for creating a new BOM, including entering header information, component details, and quantities.