KN426 - Error in parallel processing

SAP Error Message - Details

• Message type: E = Error

• Message class: KN - Reporting for Costing

• Message number: 426

• Message text: Error in parallel processing

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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Smart SAP Assistant

• What is the cause and solution for SAP error message KN426 - Error in parallel processing ?

  The SAP error message KN426, which indicates "Error in parallel processing," typically occurs during the execution of a program or transaction that involves parallel processing of data, such as mass changes to customer master data or similar operations. This error can arise due to various reasons, including issues with data consistency, system resource limitations, or configuration problems.
  Causes of KN426 Error
  
  Data Consistency Issues: If there are inconsistencies in the data being processed, it can lead to errors during parallel execution.
  Resource Limitations: The system may not have enough resources (memory, CPU) to handle the parallel processing requests.
  Configuration Issues: Incorrect settings in the SAP system related to parallel processing can lead to this error.
  Lock Conflicts: If multiple processes are trying to access the same data simultaneously, it can result in lock conflicts.
  Program Errors: Bugs or issues in the custom code or standard SAP programs being executed can also trigger this error.
  
  Solutions to KN426 Error
  
  Check Data Consistency: Ensure that the data being processed is consistent and does not contain any errors. You may need to run consistency checks or validation programs.
  Monitor System Resources: Check the system's performance metrics to ensure that there are sufficient resources available for parallel processing. If necessary, consider increasing the system's resources or optimizing the workload.
  Review Configuration Settings: Verify the configuration settings related to parallel processing in your SAP system. Ensure that they are set up correctly according to best practices.
  Reduce Parallel Processing Load: If possible, try to reduce the number of parallel processes being executed at the same time. This can help alleviate resource contention.
  Check for Lock Conflicts: Use transaction codes like SM12 to check for lock entries that may be causing conflicts. Resolve any locks that are preventing processes from completing.
  Debugging: If the error persists, consider debugging the program or transaction that is causing the error to identify any underlying issues in the code.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that resolve known issues.
  
  Related Information
  
  Transaction Codes: You may use transaction codes like SM37 (Job Monitoring) to check the status of background jobs and identify any failed jobs related to this error.
  SAP Support: If the issue cannot be resolved internally, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including any relevant logs or screenshots.
  Documentation: Review SAP documentation related to parallel processing and error handling for additional insights and best practices.
  
  By following these steps, you should be able to diagnose and resolve the KN426 error in your SAP system.