How To Fix WZRE_EXT_POST028 - BAdI &1 has been implemented multiply for application &2

SAP Error Message - Details

• Message type: E = Error

• Message class: WZRE_EXT_POST -

• Message number: 028

• Message text: BAdI &1 has been implemented multiply for application &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WZRE_EXT_POST028 - BAdI &1 has been implemented multiply for application &2 ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WZRE_EXT_POST028: BAdI &1 has been implemented multiply for application &2
  
  Meaning / Cause:
  This message indicates that the same Business Add-In (BAdI) implementation has been created multiple times for the same application area. In other words, there are multiple active implementations of the same BAdI for the specified application, which is not allowed or causes conflicts during runtime.
  
  &1 = Name of the BAdI (Business Add-In)
  &2 = Application area or context where the BAdI is implemented
  
  This situation typically arises when:
  
  A developer or consultant has created more than one implementation of the same BAdI for the same application.
  There might be duplicate or redundant implementations due to transport or system copy issues.
  The system expects only one active implementation per BAdI per application, but multiple are found.
  
  
  Impact:
  
  The system cannot determine which implementation to execute.
  It may cause runtime errors or unexpected behavior.
  The enhancement or customization logic may not work as intended.
  
  
  Solution / How to Fix:
  
  
  Check Existing Implementations:
  
  Use transaction SE18 (BAdI Builder) or SE19 (BAdI Implementation) to display the BAdI &1.
  Check all active implementations for the application &2.
  
  
  
  Deactivate or Delete Duplicate Implementations:
  
  Identify which implementations are duplicates or unnecessary.
  Deactivate or delete the redundant implementations.
  Ensure only one active implementation remains for the BAdI in the given application.
  
  
  
  Consolidate Logic if Needed:
  
  If multiple implementations contain different logic, consider consolidating them into a single implementation.
  
  
  
  Check Transport Requests:
  
  Sometimes duplicate implementations come from transports.
  Verify transport requests and clean up if necessary.
  
  
  
  Check for Enhancement Framework Conflicts:
  
  If the BAdI is part of the Enhancement Framework, ensure that no conflicting enhancements exist.
  
  
  
  Testing:
  
  After cleanup, test the application to ensure the BAdI logic works correctly.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SE18 - BAdI Builder (to display BAdI definitions)
  SE19 - BAdI Implementation (to manage implementations)
  SE80 - Object Navigator (to browse BAdIs and implementations)
  
  
  
  SAP Notes:
  
  Check SAP Notes related to the specific BAdI or application for known issues.
  
  
  
  BAdI Concepts:
  
  BAdIs allow multiple implementations, but sometimes only one active implementation per application is allowed.
  Some BAdIs are designed as single-use, others as multiple-use. This error usually occurs with single-use BAdIs.
  
  
  
  
  Summary:
  
  
  
  Aspect
  Description
  
  
  
  
  Cause
  Multiple active implementations of the same BAdI for the same application.
  
  
  Effect
  System cannot decide which implementation to use; causes errors.
  
  
  Solution
  Identify and deactivate/delete duplicate implementations; keep only one active.
  
  
  Tools
  SE18, SE19, SE80 for analysis and correction.
  
  
  
  
  If you provide the exact BAdI name and application, I can help you with more specific instructions.