How To Fix WRF_REF124 - &4 Error during conversion of module number in BAdI

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_REF - Messages from References for Materials Without History

• Message number: 124

• Message text: &4 Error during conversion of module number in BAdI

What causes this issue?

The system has created a new reference module number and has called a
BAdI that converts the new number. An error occurred during this
conversion.

System Response

The system cannot create the new reference module.

How to fix this error?

Check your implementation of method CHANGE_ID (BAdI
FRE_MCH_ID_MOD_BADI).

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WRF_REF124 - &4 Error during conversion of module number in BAdI ?

  The SAP error message WRF_REF124 typically indicates an issue related to the conversion of a module number in a Business Add-In (BAdI) implementation. This error can occur in various scenarios, particularly when working with SAP's Retail or Logistics modules.
  Cause:
  The error usually arises due to one of the following reasons:
  
  Incorrect Module Number: The module number being processed may not be valid or may not exist in the system.
  Data Inconsistency: There may be inconsistencies in the data being passed to the BAdI, such as missing or incorrect values.
  BAdI Implementation Issues: The BAdI implementation itself may have coding errors or may not be properly activated.
  Configuration Issues: There may be configuration settings in the system that are not aligned with the expected values for the BAdI.
  
  Solution:
  To resolve the WRF_REF124 error, you can take the following steps:
  
  
  Check Module Number: Verify that the module number being used is correct and exists in the system. You can do this by checking the relevant configuration or master data.
  
  
  Review BAdI Implementation: 
  
  Go to the BAdI implementation in transaction SE19 or SE80.
  Check the code for any logical errors or incorrect assumptions about the data being processed.
  Ensure that the BAdI is properly activated.
  
  
  
  Data Validation: Ensure that the data being passed to the BAdI is complete and valid. You may need to add checks or validations in the code to handle unexpected or missing data.
  
  
  Check Configuration: Review the configuration settings related to the BAdI and the module in question. Ensure that all necessary settings are correctly defined.
  
  
  Debugging: If the issue persists, consider debugging the BAdI implementation to identify the exact point of failure. This can provide insights into what data is causing the conversion error.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific BAdI and module you are working with. There may be known issues or additional guidance available.
  
  
  SAP Support: If you are unable to resolve the issue, consider reaching out to SAP support for assistance. Provide them with detailed information about the error, including the context in which it occurs.
  
  
  Related Information:
  
  BAdI (Business Add-In): A way to enhance SAP applications without modifying the original code. BAdIs allow for custom implementations to be added.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE19 (BAdI Implementation), SE80 (Object Navigator), and SE37 (Function Module) for debugging and analysis.
  SAP Notes: Search for SAP Notes related to WRF_REF124 or the specific BAdI you are working with, as they may contain patches or additional troubleshooting steps.
  
  By following these steps, you should be able to identify and resolve the underlying cause of the WRF_REF124 error in your SAP system.