TroubleshootingEdit online Use these topics to diagnose and correct problems that you experience with IMS HP Change Accumulation Utility. Runtime messages (HPC)Detailed information about IMS HP Change Accumulation Utility messages is described in this reference section.Abend codesDetailed information about IMS HP Change Accumulation Utility abend codes is provided in this reference section.Using diagnostic resourcesThere are several resources available to help you diagnose and troubleshoot IMS HP Change Accumulation Utility problems. Gathering diagnostic informationBefore you report a problem with IMS HP Change Accumulation Utility to IBM® Software Support, you need to gather the appropriate diagnostic information.