How To Fix BLE_BADI_COMPAT_CHK020 - Unexpected interface &1 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: 020

• Message text: Unexpected interface &1 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_CHK020 - Unexpected interface &1 implemented in class &2. ?

  The SAP error message BLE_BADI_COMPAT_CHK020 indicates that there is an unexpected interface implemented in a class that is related to Business Add-Ins (BAdIs). This typically occurs when a BAdI implementation does not conform to the expected interfaces or methods defined for that BAdI.
  Cause:
  
  Incompatible Interface: The class implementing the BAdI is using an interface that is not compatible with the expected interface for that BAdI.
  Changes in BAdI Definition: If the BAdI definition has been changed (e.g., new methods added or existing methods modified), and the implementation has not been updated accordingly, this error can occur.
  Multiple Implementations: If there are multiple implementations of the same BAdI, and one of them is using an unexpected interface, it can lead to this error.
  
  Solution:
  
  Check BAdI Definition: Review the BAdI definition in transaction SE18 or SE19 to understand the expected interfaces and methods. Ensure that your implementation class adheres to these definitions.
  Update Implementation: If the BAdI definition has changed, update your implementation to include the necessary methods or to remove any unexpected interfaces.
  Remove Unexpected Interfaces: If your implementation class is implementing an interface that is not required, remove it from the class definition.
  Re-implement the BAdI: If necessary, you can delete the existing implementation and re-implement the BAdI to ensure that it is correctly aligned with the current definition.
  Check for Transport Issues: If the error occurs after a transport, ensure that all related objects (like the BAdI definition and its implementations) have been transported correctly.
  
  Related Information:
  
  Transaction Codes: Use SE18 to view BAdI definitions and SE19 to manage BAdI implementations.
  Documentation: Check the SAP documentation for the specific BAdI you are working with to understand its purpose and expected behavior.
  SAP Notes: Search for relevant SAP Notes that might address known issues or provide guidance on this error message.
  Debugging: If the issue persists, consider debugging the implementation to trace where the unexpected interface is being called or utilized.
  
  By following these steps, you should be able to resolve the BLE_BADI_COMPAT_CHK020 error and ensure that your BAdI implementation is compatible with the expected interfaces.