How To Fix 1B400 - *Messages for parallel processing of items+++++++++++++++++++++++++++++++

SAP Error Message - Details

• Message type: E = Error

• Message class: 1B - BKK: General Texts

• Message number: 400

• Message text: *Messages for parallel processing of items+++++++++++++++++++++++++++++++

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 1B400 - *Messages for parallel processing of items+++++++++++++++++++++++++++++++ ?

  The SAP error message 1B400, which pertains to "Messages for parallel processing of items," typically occurs in the context of parallel processing in SAP systems. This error can arise during various operations, such as batch processing, data uploads, or when executing programs that handle multiple items simultaneously.
  Cause:
  
  Parallel Processing Issues: The error may occur if there are issues with the parallel processing configuration or if the system is unable to handle the number of parallel processes requested.
  Resource Limitations: Insufficient system resources (like memory or CPU) can lead to failures in processing items in parallel.
  Locking Issues: If multiple processes are trying to access the same data simultaneously, it can lead to locking conflicts.
  Configuration Errors: Incorrect settings in the parallel processing configuration can also lead to this error.
  
  Solution:
  
  Check System Resources: Ensure that the system has adequate resources (CPU, memory) to handle the parallel processing load.
  Review Parallel Processing Settings: Check the configuration settings for parallel processing in the relevant transaction or program. Adjust the number of parallel processes if necessary.
  Monitor Locks: Use transaction codes like SM12 to monitor and resolve any locking issues that may be causing the error.
  Batch Job Management: If the error occurs during batch job processing, review the job logs for any specific errors and adjust the job parameters accordingly.
  Error Logs: Check the application logs (transaction SLG1) for more detailed error messages that can provide insights into the root cause.
  Consult Documentation: Refer to SAP Notes or documentation related to the specific transaction or program you are using for any known issues or patches.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM37 (for monitoring jobs), SM12 (for lock entries), and SLG1 (for application logs).
  SAP Notes: Search for SAP Notes related to parallel processing errors for specific guidance or patches that may address the issue.
  Performance Tuning: Consider performance tuning of the system if parallel processing is a frequent requirement, which may involve adjusting system parameters or optimizing code.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.