Within the Product Costing module SAP offers Mixed Costing functionality. This functionality provides the ability to cost a material using multiple alternative methods, for example when a material is produced with different internal processes. For companies running the PP-PI module that is specified through separate production versions, which would use different master recipes. When executing a cost estimate the system calculates the cost for each production version, then calculates an average unit cost using weighting factors provided manually. With the Cost Estimate display (CK13N) the system shows the total cost of each procurement alternative and has the ability to view the detail of each.