How To Fix /SAPAPO/OM_PERF_MSG307 - Normal objects: Dereference against OMS cache

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/OM_PERF_MSG -

• Message number: 307

• Message text: Normal objects: Dereference against OMS cache

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/OM_PERF_MSG307 - Normal objects: Dereference against OMS cache ?

  The SAP error message /SAPAPO/OM_PERF_MSG307 typically indicates a performance issue related to the Online Monitoring System (OMS) cache in SAP Advanced Planning and Optimization (APO). This message suggests that there is a problem with the dereferencing of normal objects against the OMS cache, which can lead to performance degradation.
  Cause:
  
  Cache Issues: The OMS cache may be overloaded or not properly configured, leading to inefficient dereferencing of objects.
  Data Volume: A high volume of data or complex queries can cause performance bottlenecks when accessing the cache.
  System Configuration: Incorrect settings in the APO system or the underlying database can lead to inefficient cache usage.
  Outdated Statistics: If the database statistics are outdated, the optimizer may not choose the best execution plan, leading to performance issues.
  
  Solution:
  
  Check Cache Configuration: Review the configuration of the OMS cache. Ensure that it is set up correctly and that the parameters are optimized for your workload.
  Clear Cache: Sometimes, clearing the cache can resolve performance issues. This can be done through transaction codes or specific programs designed to clear the cache.
  Optimize Queries: Analyze the queries that are causing the issue. Optimize them to reduce the load on the cache.
  Update Statistics: Ensure that the database statistics are up to date. This can help the optimizer make better decisions regarding query execution.
  Monitor Performance: Use performance monitoring tools to identify bottlenecks and areas for improvement. This can help in understanding the root cause of the issue.
  Increase Resources: If the system is consistently under heavy load, consider increasing the resources allocated to the APO system, such as memory or CPU.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on performance tuning for the OMS cache.
  Transaction Codes: Familiarize yourself with transaction codes related to cache management and performance monitoring in SAP APO, such as /SAPAPO/OM_PERF for performance analysis.
  Documentation: Review SAP documentation on performance optimization in APO, which may provide additional insights and best practices.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with SAP support or a technical consultant who specializes in SAP APO for further assistance.