How To Fix WE009 - An entry with the same key already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: WE - Messages for EAN Customizing and for EAN management in MM_BD

• Message number: 009

• Message text: An entry with the same key already exists

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WE009 - An entry with the same key already exists ?

  SAP Error Message:
  
  WE009 - An entry with the same key already exists
  
  Cause:
  The error message WE009 occurs when SAP tries to create or insert an entry (such as a segment, partner profile, or IDoc control record) with a key that already exists in the database or internal table. This typically happens during IDoc processing or EDI message handling when duplicate keys are encountered.
  Common scenarios include:
  
  Duplicate segment keys in an IDoc.
  Duplicate partner profiles or partner functions.
  Attempting to create an entry in a table or internal structure where the key is supposed to be unique, but the key already exists.
  During inbound or outbound processing, the system tries to create an IDoc or segment with a key that is already present.
  
  
  Solution:
  To resolve the WE009 error, consider the following steps:
  
  
  Check for Duplicate Entries:
  
  Review the IDoc or EDI message data to identify duplicate segments or keys.
  Use transaction codes like WE02 or WE05 to display IDocs and check for duplicates.
  
  
  
  Verify Partner Profiles:
  
  Check partner profiles in WE20 to ensure no duplicate entries exist for the same partner and message type.
  
  
  
  Debug or Analyze the Program:
  
  If the error occurs during custom processing (e.g., user exits, BAdIs, or custom IDoc processing), debug the code to find where the duplicate key insertion happens.
  Ensure that the logic prevents duplicate keys or handles them appropriately.
  
  
  
  Clean Up or Correct Data:
  
  If the error is due to corrupted or inconsistent data, clean up the data or reprocess the IDoc.
  Sometimes, deleting or archiving problematic IDocs and reprocessing can help.
  
  
  
  Check Table Entries:
  
  If the error relates to database tables, check the relevant tables for duplicate keys.
  Use SE16/SE16N to inspect tables related to the error.
  
  
  
  SAP Notes and Support:
  
  Search for SAP Notes related to WE009 for your specific module or scenario.
  Sometimes, patches or corrections are available.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  WE02 / WE05 - Display IDocs
  WE20 - Partner Profiles
  WE19 - Test tool for IDocs
  SE16 / SE16N - Data Browser for tables
  
  
  
  Common Tables:
  
  EDIDC - Control record for IDocs
  EDID4 - Data records for IDocs
  EDIDS - Status records for IDocs
  
  
  
  Typical Use Cases:
  
  IDoc inbound processing where duplicate segments are created.
  EDI message processing with duplicate partner or message keys.
  Custom enhancements or user exits that incorrectly handle keys.
  
  
  
  
  Summary:
  WE009 indicates a duplicate key insertion attempt. The solution involves identifying and removing duplicates in IDocs, partner profiles, or custom code, ensuring unique keys during processing, and correcting any data inconsistencies.
  
  If you provide the context or scenario where the error occurs (e.g., inbound IDoc processing, partner profile maintenance, custom program), I can give more specific guidance.