How To Fix D4520 - Number of sorts

SAP Error Message - Details

• Message type: E = Error

• Message class: D4 - DB2/400 specific messages

• Message number: 520

• Message text: Number of sorts

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message D4520 - Number of sorts ?

  The SAP error message D4520, which indicates "Number of sorts," typically arises in the context of data processing or reporting, particularly when dealing with large datasets or complex queries. This error suggests that the number of sorts required to process a particular operation exceeds the allowable limit set by the SAP system.
  Cause:
  
  Excessive Sorting: The operation you are trying to perform requires more sorting operations than the system can handle. This can happen in scenarios involving complex queries, large datasets, or when multiple sorting criteria are applied.
  System Configuration: The system parameters related to sorting may not be optimally configured, leading to limitations in handling sorts.
  Data Volume: Large volumes of data being processed can lead to increased sorting requirements, which may exceed the system's capabilities.
  
  Solution:
  
  Optimize Queries: Review and optimize the queries or reports that are causing the error. Try to reduce the number of sorting operations by simplifying the query or breaking it down into smaller parts.
  Adjust System Parameters: If you have access to system configuration, consider adjusting the parameters related to sorting. This may involve increasing the limits for sorts in the system settings.
  Data Reduction: If possible, reduce the amount of data being processed at one time. This can be done by filtering data more effectively or processing it in smaller batches.
  Use Indexes: Ensure that appropriate indexes are in place for the tables being queried. Indexes can significantly reduce the need for sorting by allowing the database to retrieve data in a more efficient manner.
  Consult Documentation: Refer to SAP documentation or support resources for specific guidance on handling sorting limits and optimizing performance.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error. SAP frequently releases updates that may address performance issues or bugs.
  Performance Monitoring: Use SAP performance monitoring tools to analyze the queries and identify bottlenecks or areas for improvement.
  Consult SAP Support: If the issue persists, consider reaching out to SAP support for assistance. They can provide insights based on your specific system configuration and usage patterns.
  
  By addressing the underlying causes and implementing the suggested solutions, you should be able to resolve the D4520 error and improve the performance of your SAP system.