How To Fix QI166 - Hash management error on subsystem

SAP Error Message - Details

• Message type: E = Error

• Message class: QI - Notifications for interface modules for connecting subsyst.

• Message number: 166

• Message text: Hash management error on subsystem

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

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Smart SAP Assistant

• What is the cause and solution for SAP error message QI166 - Hash management error on subsystem ?

  The SAP error message QI166, which indicates a "Hash management error on subsystem," typically relates to issues with the Quality Management (QM) module in SAP. This error can occur during the processing of quality notifications, inspections, or other QM-related activities. Here are some potential causes, solutions, and related information for this error:
  Causes:
  
  Data Corruption: There may be corrupted data in the quality management tables or in the hash tables used by the subsystem.
  Configuration Issues: Incorrect configuration settings in the QM module or related subsystems can lead to hash management errors.
  System Bugs: There may be bugs in the SAP system or specific patches that have not been applied, leading to unexpected behavior.
  Database Issues: Problems with the underlying database, such as locks or inconsistencies, can also trigger this error.
  Performance Issues: High system load or performance bottlenecks can lead to timeouts or failures in hash management.
  
  Solutions:
  
  Check for Data Integrity: Use transaction codes like SE11 or SE16 to check the relevant tables for any inconsistencies or corrupted entries. You may need to run consistency checks or repair tools provided by SAP.
  Review Configuration: Ensure that the configuration settings for the QM module and any related subsystems are correct. This includes checking the settings in transaction codes like OQA1 (Quality Inspection) and OQ01 (Quality Notification).
  Apply SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that address this specific error. Applying the latest patches or updates may resolve the issue.
  Database Maintenance: Perform database maintenance tasks, such as checking for locks, running consistency checks, or optimizing the database.
  System Performance Monitoring: Monitor system performance to identify any bottlenecks or issues that may be affecting the QM processes. Tools like ST03N (Workload Analysis) can help in this regard.
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including any relevant logs or screenshots.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in the QM module, such as QA01 (Create Inspection Lot), QA02 (Change Inspection Lot), and QA03 (Display Inspection Lot).
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Documentation: Review SAP documentation related to the QM module for best practices and troubleshooting steps.
  
  By following these guidelines, you should be able to diagnose and potentially resolve the QI166 error in your SAP system.