Final answer:
Chapter Seven of the Air Force Handbook (AFH) 23-123, Volume 2, Part 2, details the actions required to correct rejects in the materiel management system.
Step-by-step explanation:
The chapter in the Air Force Handbook (AFH) 23-123, Materiel Management Handbook, Volume 2, Part 2 that identifies the action required to correct the materiel management system's rejects created during processing is Chapter Seven. This chapter provides guidance on troubleshooting and dealing with system rejections, which is a critical aspect of materiel management within the Air Force supply system. Corrective actions can range from simple data entry adjustments to more complex procedural remedies depending on the nature of the reject.