Material
Identification in Production 
Use
As of Release 4.6C, you can use the material identification function to check whether ingredients belong to process orders at the production line. Material identification is based on the material list of the process order. This ensures that only the correct materials are used in production.
Material identification is included in the PI sheet by way of a dynamic function call.
See also
SAP Library: Production Planning - Process Industries -> Process Management -> Process Instruction Sheet -> Process Instructions for the R/3 PI Sheet -> Dynamic Function Calls