How To Fix /PM0/ABT_INSOBJ018 - Multiple enh. keys &1, &2: Subsequent duplicates will be ignored

SAP Error Message - Details

• Message type: E = Error

• Message class: /PM0/ABT_INSOBJ -

• Message number: 018

• Message text: Multiple enh. keys &1, &2: Subsequent duplicates will be ignored

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PM0/ABT_INSOBJ018 - Multiple enh. keys &1, &2: Subsequent duplicates will be ignored ?

  The SAP error message /PM0/ABT_INSOBJ018 Multiple enh. keys &1, &2: Subsequent duplicates will be ignored typically occurs in the context of enhancement implementation, particularly when dealing with enhancement spots or business add-ins (BAdIs). This message indicates that there are multiple enhancement keys being processed, and any subsequent duplicates of these keys will be ignored.
  Cause:
  
  
  Duplicate Enhancement Keys: The error is triggered when the system detects that the same enhancement key is being used multiple times in the same context. This can happen if:
  
  Multiple implementations of the same BAdI are active.
  There are conflicting or redundant entries in the enhancement implementation.
  
  
  
  Configuration Issues: Sometimes, the configuration of the enhancement spots or the way enhancements are defined can lead to this error.
  
  
  Solution:
  
  
  Check Active Implementations: 
  
  Go to transaction SE19 (BAdI Implementation) or SE80 (Object Navigator) and check the active implementations for the BAdI in question.
  Ensure that there are no duplicate implementations for the same enhancement key.
  
  
  
  Review Enhancement Spots: 
  
  Use transaction SE84 or SE11 to review the enhancement spots and ensure that they are correctly defined and do not have overlapping keys.
  
  
  
  Adjust Implementation Logic: 
  
  If you have control over the implementation logic, consider modifying it to handle cases where multiple implementations might be invoked. This could involve adding checks to ensure that the logic only executes once for a given enhancement key.
  
  
  
  Consult Documentation: 
  
  Review the SAP documentation related to the specific BAdI or enhancement spot to understand the expected behavior and any constraints.
  
  
  
  SAP Notes: 
  
  Check for any relevant SAP Notes that might address this issue. Sometimes, SAP releases notes that provide fixes or workarounds for specific error messages.
  
  
  
  Testing: 
  
  After making changes, ensure to test the functionality thoroughly to confirm that the error no longer occurs and that the desired behavior is achieved.
  
  
  
  Related Information:
  
  Enhancement Framework: Understanding the SAP enhancement framework is crucial. It allows developers to add custom functionality without modifying the original code.
  BAdI (Business Add-In): A specific type of enhancement that allows for the implementation of custom logic in standard SAP applications.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE19, SE80, SE84, and SE11 for managing enhancements and BAdIs.
  
  If the issue persists after following these steps, it may be beneficial to consult with an SAP expert or reach out to SAP support for further assistance.