/FLDQ/AD_TECH_ERRORS559 - Match record exists exception in JCO Table.

SAP Error Message - Details

• Message type: E = Error

• Message class: /FLDQ/AD_TECH_ERRORS -

• Message number: 559

• Message text: Match record exists exception in JCO Table.

Self-Explanatory Message

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AnswerBot

• What is the cause and solution for SAP error message /FLDQ/AD_TECH_ERRORS559 - Match record exists exception in JCO Table. ?

  The SAP error message /FLDQ/AD_TECH_ERRORS559 Match record exists exception in JCO Table typically indicates that there is a conflict or issue with the data in the JCO (Java Connector) table, specifically related to the existence of a matching record that is causing an exception.
  Cause:
  
  Duplicate Entries: The error often arises when there are duplicate entries in the JCO table that violate the uniqueness constraints.
  Data Integrity Issues: There may be inconsistencies or integrity issues in the data being processed, leading to conflicts.
  Configuration Issues: Incorrect configuration settings in the JCO or related components can also lead to this error.
  Transaction Conflicts: If multiple transactions are trying to access or modify the same record simultaneously, it can lead to this error.
  
  Solution:
  
  Check for Duplicates: Review the JCO table for duplicate entries. You can use SQL queries or SAP transaction codes to identify and resolve duplicates.
  Data Cleanup: If duplicates are found, you may need to delete or merge records to ensure that only unique entries exist.
  Review Configuration: Check the configuration settings related to the JCO and ensure they are set up correctly. This includes reviewing any relevant RFC (Remote Function Call) settings.
  Transaction Management: Ensure that transactions are managed properly to avoid conflicts. Implement locking mechanisms if necessary to prevent simultaneous access to the same records.
  Consult Logs: Review the application logs and system logs for more detailed error messages that can provide additional context on the issue.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes or patches that may address this specific error.
  
  Related Information:
  
  JCO Table: The JCO table is used for managing connections between SAP systems and Java applications. Understanding its structure and purpose can help in troubleshooting.
  SAP Transaction Codes: Familiarize yourself with transaction codes like SE11 (Data Dictionary), SE16 (Data Browser), and SM37 (Job Monitoring) to analyze the data and job statuses.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  Documentation: Refer to SAP documentation for best practices on managing JCO connections and handling exceptions.
  
  If the issue persists after trying the above solutions, it may be beneficial to involve your SAP Basis team or consult with SAP support for further assistance.