How To Fix KF321 - Row overflow while & was being generated

SAP Error Message - Details

• Message type: E = Error

• Message class: KF -

• Message number: 321

• Message text: Row overflow while & was being generated

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 KF321 - Row overflow while & was being generated ?

  The SAP error message KF321, which states "Row overflow while & was being generated," typically occurs in the context of SAP BW (Business Warehouse) or SAP HANA when there is an issue with the data being processed, particularly when the data exceeds the limits of the data structure being used.
  Cause:
  
  Data Volume: The error often arises when the data being processed exceeds the maximum number of rows or columns that can be handled by the system or the specific data structure (like a table or a report).
  Aggregation Issues: If you are trying to aggregate data and the result set is too large, it can lead to this overflow error.
  Incorrect Data Model: Sometimes, the data model may not be optimized for the volume of data being processed, leading to inefficiencies and overflow.
  Configuration Issues: There may be configuration settings in the InfoProvider or query that are not set correctly, leading to excessive data being pulled into memory.
  
  Solution:
  
  Reduce Data Volume: Try to limit the amount of data being processed in the query. This can be done by applying filters or reducing the time frame of the data being analyzed.
  Optimize Queries: Review and optimize the queries to ensure they are efficient. This may involve adjusting the aggregation levels or changing the way data is retrieved.
  Check Data Model: Ensure that the data model is designed to handle the expected volume of data. This may involve restructuring the InfoObjects or InfoProviders.
  Increase Memory Limits: If applicable, consider increasing the memory limits for the query execution or the data processing in the SAP system.
  Use Paging: If the application allows, implement paging to break down the data into smaller, more manageable chunks.
  Review Configuration: Check the configuration settings of the InfoProvider or query to ensure they are set up correctly to handle the data being processed.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to error KF321 for any specific patches or updates that may address this issue.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Documentation: Review SAP documentation for best practices on data modeling and query optimization in BW or HANA environments.
  
  If the problem persists after trying these solutions, it may be beneficial to consult with your SAP Basis or BW team for further analysis and troubleshooting.