How To Fix BLE_BADI_COMPAT_CHK021 - Interface &1 not implemented in class &2.

SAP Error Message - Details

• Message type: E = Error

• Message class: BLE_BADI_COMPAT_CHK - messages of BLE BAdI consistency check

• Message number: 021

• Message text: Interface &1 not implemented in class &2.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message BLE_BADI_COMPAT_CHK021 - Interface &1 not implemented in class &2. ?

  The SAP error message BLE_BADI_COMPAT_CHK021 indicates that a Business Add-In (BAdI) interface is not implemented in a specific class. This error typically arises when the system attempts to call a BAdI method that has not been implemented in the specified class.
  Cause:
  
  Missing Implementation: The BAdI interface is defined, but the implementation for the specific class is missing.
  Incorrect Class: The class being referenced may not be the correct one that should implement the BAdI.
  BAdI Activation: The BAdI may not be activated or may not have any active implementations.
  Versioning Issues: There may be versioning issues if the BAdI has been changed or updated, and the corresponding implementation has not been adjusted accordingly.
  
  Solution:
  
  
  Check BAdI Implementation:
  
  Go to transaction SE18 (BAdI Definition) and check the definition of the BAdI.
  Use transaction SE19 (BAdI Implementation) to see if there are any active implementations for the BAdI in question.
  If there are no implementations, you will need to create one.
  
  
  
  Create or Adjust Implementation:
  
  If an implementation is missing, create a new implementation for the BAdI in the appropriate class.
  Ensure that the class you are implementing the BAdI in is the correct one that is being called.
  
  
  
  Check for Activation:
  
  Ensure that the BAdI is activated. Sometimes, BAdIs can be in a deactivated state, which would prevent their methods from being called.
  
  
  
  Review Class and Method Names:
  
  Double-check the class name and method names in your code to ensure they match the BAdI definition.
  
  
  
  Consult Documentation:
  
  Review any relevant SAP documentation or notes related to the BAdI for additional context or specific implementation guidelines.
  
  
  
  Debugging:
  
  If you have access to the system, you can debug the code to see where the call to the BAdI is made and confirm that the correct class is being referenced.
  
  
  
  Related Information:
  
  BAdI (Business Add-In): A BAdI is a type of enhancement in SAP that allows developers to add custom functionality to standard SAP applications without modifying the original code.
  Transaction Codes:
  
  SE18: To view BAdI definitions.
  SE19: To create or manage BAdI implementations.
  
  
  SAP Notes: Check for any SAP Notes related to the specific BAdI for known issues or additional guidance.
  
  By following these steps, you should be able to resolve the BLE_BADI_COMPAT_CHK021 error and ensure that the BAdI is properly implemented and activated in your SAP system.