How To Fix AW661 - System error occurred during summarization of line items

SAP Error Message - Details

• Message type: E = Error

• Message class: AW - AuC messages

• Message number: 661

• Message text: System error occurred during summarization of line items

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 AW661 - System error occurred during summarization of line items ?

  The SAP error message AW661, which states "System error occurred during summarization of line items," typically occurs during the summarization process in the SAP system, particularly in the context of financial or controlling modules. This error can arise due to various reasons, including data inconsistencies, configuration issues, or system performance problems.
  Causes:
  
  Data Inconsistencies: There may be inconsistencies in the line item data that prevent the summarization process from completing successfully.
  Configuration Issues: Incorrect configuration settings in the relevant modules (e.g., FI, CO) can lead to errors during summarization.
  Performance Issues: If the system is under heavy load or if there are performance bottlenecks, it may lead to timeouts or failures during the summarization process.
  Missing Authorizations: Lack of necessary authorizations for the user executing the summarization can also trigger this error.
  Database Issues: Problems with the underlying database, such as locks or corruption, can cause errors during data processing.
  
  Solutions:
  
  
  Check for Data Inconsistencies:
  
  Use transaction codes like SE16 or SE11 to check the relevant tables for inconsistencies.
  Run reports to identify any discrepancies in the line item data.
  
  
  
  Review Configuration Settings:
  
  Ensure that the configuration settings for the relevant modules (FI, CO) are correctly set up.
  Check the summarization settings in the customizing transactions.
  
  
  
  Monitor System Performance:
  
  Use transaction ST22 to check for dumps that may provide more information about the error.
  Monitor system performance using transaction SM50 or SM66 to identify any bottlenecks.
  
  
  
  Check Authorizations:
  
  Verify that the user executing the summarization has the necessary authorizations to perform the operation.
  
  
  
  Database Maintenance:
  
  Check for database locks or issues using transaction DB02.
  Consider running database maintenance tasks to resolve any underlying issues.
  
  
  
  Consult SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may address this specific error. There may be patches or updates available that resolve known issues.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including any relevant logs or dumps.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE16 (Data Browser), SE11 (Data Dictionary), ST22 (Dump Analysis), SM50 (Process Overview), and SM66 (Global Process Overview).
  SAP Notes: Regularly check for updates and patches related to your SAP version that may address known issues with summarization processes.
  Documentation: Review SAP documentation for the specific module you are working with to understand the summarization process and any prerequisites.
  
  By following these steps, you should be able to diagnose and resolve the AW661 error in your SAP system.