How To Fix FVD_UI_CLOAN129 - Technical error - BAdI "FVD_MD_MODEL->GET_FILE_NUMBER" contains errors

FVD_UI_CLOAN129 - Overview

• Message type: E = Error

• Message class: FVD_UI_CLOAN - User Interface for Consumer Loans

• Message number: 129

• Message text: Technical error - BAdI "FVD_MD_MODEL->GET_FILE_NUMBER" contains errors

What causes this issue?

An error occurs when you implement the BAdI
"FVD_MD_MODEL->GET_FILE_NUMBER".
Contact your system administrator.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

The BAdI mentioned above determines the value for the database field
VDARL-XAKT. However, the initial value returned by the BAdI is not
permissible.
Check the BAdI implementation.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FVD_UI_CLOAN129 - Technical error - BAdI "FVD_MD_MODEL->GET_FILE_NUMBER" contains errors ?

  The SAP error message FVD_UI_CLOAN129 indicates a technical error related to a Business Add-In (BAdI) implementation, specifically the method GET_FILE_NUMBER in the BAdI FVD_MD_MODEL. This error typically arises when there is an issue in the custom implementation of the BAdI or when the system encounters unexpected data or conditions.
  Causes:
  
  Implementation Errors: The custom implementation of the BAdI may contain coding errors or logic flaws that prevent it from executing correctly.
  Data Issues: The data being processed may not meet the expected format or conditions, leading to runtime errors.
  
  Configuration Issues: There may be configuration settings in the system that are not aligned with the expectations of the BAdI implementation.
  System Bugs: There could be bugs in the SAP system itself, especially if you are using an older version or if there are known issues with the specific BAdI.
  
  Solutions:
  
  
  Check BAdI Implementation:
  
  Review the implementation of the BAdI FVD_MD_MODEL->GET_FILE_NUMBER for any coding errors or logical issues.
  Ensure that