How To Fix USMD_MC020 - More than &1 records selected. Expect decrease in system performance.

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD_MC - Messages for USMD Mass Change

• Message number: 020

• Message text: More than &1 records selected. Expect decrease in system performance.

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message USMD_MC020 - More than &1 records selected. Expect decrease in system performance. ?

  The SAP error message USMD_MC020 indicates that a query or operation has selected more records than expected, which can lead to performance issues in the system. This message is typically encountered in the context of Master Data Governance (MDG) or similar data management scenarios.
  Cause:
  The error occurs when a process attempts to handle a large number of records simultaneously, which can strain system resources and degrade performance. This can happen due to:
  
  Inefficient Queries: The selection criteria used in the query may not be specific enough, resulting in a larger dataset being retrieved than intended.
  Data Volume: The volume of data in the system may have increased, leading to more records being selected than in previous operations.
  Configuration Issues: There may be configuration settings that are not optimized for the current data volume or usage patterns.
  
  Solution:
  To resolve the USMD_MC020 error, consider the following steps:
  
  
  Refine Selection Criteria: Review and refine the selection criteria used in the query to ensure that it is as specific as possible. This can help reduce the number of records selected.
  
  
  Batch Processing: If applicable, implement batch processing to handle records in smaller groups rather than all at once. This can help manage system load and improve performance.
  
  
  Performance Tuning: Analyze the performance of the queries and consider optimizing database indexes or adjusting system parameters to better handle larger datasets.
  
  
  Monitoring and Analysis: Use SAP performance monitoring tools to analyze the system's performance and identify bottlenecks. This can help in understanding why the performance is degrading and what can be done to improve it.
  
  
  Consult Documentation: Check SAP notes and documentation for any specific recommendations or patches related to this error message.
  
  
  Engage SAP Support: If the issue persists, consider reaching out to SAP support for assistance. They may provide insights or solutions based on the specific context of your system.
  
  
  Related Information:
  
  SAP Notes: Look for relevant SAP Notes that may address this specific error or provide guidance on performance optimization.
  MDG Configuration: Review the configuration settings in your Master Data Governance setup to ensure they are aligned with best practices.
  System Performance Monitoring: Utilize tools like SAP Solution Manager or transaction codes like ST03N to monitor system performance and identify areas for improvement.
  
  By addressing the underlying causes and implementing the suggested solutions, you can mitigate the performance issues associated with the USMD_MC020 error message.