The document discusses GM's Contract Savings system for tracking cost savings from supplier contracts. It provides training on properly using the system to accurately capture performance savings from price reductions and engineering changes. Key points emphasized include correctly setting up replaced part relationships, using the right reason codes for engineering changes, and ensuring engineering price impacts are fully reflected in the system to avoid misreporting savings performance. The system aims to separate purchasing from engineering savings, but requires users to input the right data for it to calculate performance correctly.