How To Fix /PF1/MSG_CONV559 - Duplicate keys on buffer

SAP Error Message - Details

• Message type: E = Error

• Message class: /PF1/MSG_CONV -

• Message number: 559

• Message text: Duplicate keys on buffer

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PF1/MSG_CONV559 - Duplicate keys on buffer ?

  The SAP error message /PF1/MSG_CONV559 Duplicate keys on buffer typically indicates that there is an issue with duplicate entries in a buffer that is being processed. This can occur in various contexts, such as during data transfer, when working with internal tables, or when handling data in a specific transaction.
  Cause:
  
  Duplicate Entries: The most common cause of this error is that the system has encountered duplicate keys in a buffer or internal table where unique keys are expected.
  Data Consistency Issues: There may be inconsistencies in the data being processed, leading to duplicates.
  Configuration Issues: Incorrect configuration in the system or in the data transfer process can lead to this error.
  Program Logic: The logic in the ABAP program may not be handling duplicates correctly, leading to this error.
  
  Solution:
  
  Check for Duplicates: Review the data being processed to identify and eliminate any duplicate entries. This can be done by using transaction codes like SE16 or SE11 to inspect the relevant database tables.
  Modify Program Logic: If you are developing or maintaining an ABAP program, ensure that the logic correctly handles duplicates. You may need to implement checks before inserting data into internal tables or buffers.
  Adjust Buffer Settings: If applicable, review the buffer settings in the system configuration to ensure they are set up correctly to handle the expected data volume.
  Data Cleansing: If the error is related to data transfer, consider performing data cleansing to remove duplicates before the data is loaded into the system.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide guidance on how to resolve it.
  
  Related Information:
  
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary), SE16 (Data Browser), or SE80 (Object Navigator) to analyze the data structures and tables involved.
  Debugging: If you have access to the ABAP code, consider using the debugger to step through the code and identify where the duplicates are being introduced.
  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 related to the specific module or functionality you are working with, as it may provide insights into handling duplicates.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.