How To Fix REISCA023 - Resource error during parallel processing (&1)

SAP Error Message - Details

• Message type: E = Error

• Message class: REISCA - Information System: General Functions

• Message number: 023

• Message text: Resource error during parallel processing (&1)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message REISCA023 - Resource error during parallel processing (&1) ?

  The SAP error message REISCA023 indicates a resource error during parallel processing, which typically occurs when the system is unable to allocate the necessary resources (such as memory, CPU, or other system resources) to execute a parallel processing task. This can happen in various scenarios, such as during data processing, report generation, or batch jobs.
  Causes:
  
  Insufficient System Resources: The system may not have enough memory or CPU resources available to handle the parallel processing requests.
  Configuration Issues: The configuration settings for parallel processing may not be optimized, leading to resource contention.
  High Load on the System: If the system is under heavy load due to other processes, it may not be able to allocate resources for new parallel tasks.
  Database Locks: If there are locks on the database that prevent access to required data, it can lead to resource errors.
  Job Scheduling Conflicts: Conflicts with other scheduled jobs that are running simultaneously can also lead to resource allocation issues.
  
  Solutions:
  
  Monitor System Resources: Use transaction codes like ST02 (Buffer Monitor), ST06 (Operating System Monitor), and SM50 (Process Overview) to check the current resource usage and identify bottlenecks.
  Adjust Parallel Processing Settings: Review and adjust the settings for parallel processing in the relevant configuration areas (e.g., in the job scheduling or background processing settings).
  Increase System Resources: If possible, increase the memory or CPU resources allocated to the SAP system, especially if it is running on a virtual machine or cloud environment.
  Optimize Background Jobs: Review and optimize the background jobs that are scheduled to run in parallel. Consider staggering their execution times to reduce resource contention.
  Check for Locks: Use transaction SM12 to check for any database locks that may be causing issues and resolve them if necessary.
  Review Job Logs: Check the logs of the jobs that are failing to get more detailed information about the error and any specific resource constraints.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  System Performance Tuning: Consider conducting a performance tuning exercise for the SAP system to ensure optimal resource allocation and usage.
  
  If the issue persists after trying the above solutions, it may be necessary to involve SAP support for further investigation and assistance.