How To Fix WRF_WSUBST042 - Error triggered in BAdI implementation; purchase order &1, item &2

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_WSUBST - Article Substitution: Messages Central Determination Logic

• Message number: 042

• Message text: Error triggered in BAdI implementation; purchase order &1, item &2

What causes this issue?

An error occurred in a customer implementation of method
WRF_SUBST_CHANGE_SUBSTPROPOSAL of the BAdI WRF_SUBST_BADI_ARTICLE_SUBST.

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WRF_WSUBST042 - Error triggered in BAdI implementation; purchase order &1, item &2 ?

  The SAP error message WRF_WSUBST042 indicates that there is an issue in a Business Add-In (BAdI) implementation related to a purchase order. Specifically, it suggests that an error occurred during the execution of the BAdI for a particular purchase order and item.
  Cause:
  
  BAdI Implementation Error: The most common cause of this error is a problem in the custom code of the BAdI implementation. This could be due to syntax errors, logic errors, or unhandled exceptions in the code.
  Data Issues: There may be issues with the data being processed, such as missing or incorrect values in the purchase order or item.
  Configuration Issues: Incorrect configuration settings related to the BAdI or the purchasing process could also lead to this error.
  Authorization Issues: The user executing the transaction may not have the necessary authorizations to perform the actions defined in the BAdI.
  
  Solution:
  
  Check BAdI Implementation: Review the code in the BAdI implementation for any errors. Look for syntax issues, unhandled exceptions, or logic that may not be functioning as intended.
  
  Use transaction SE19 to find and analyze the BAdI implementation.
  
  
  Debugging: If you have access, use the debugger to step through the BAdI implementation to identify where the error occurs. This can help pinpoint the exact line of code causing the issue.
  Data Validation: Ensure that the purchase order and item data being processed are valid and complete. Check for any missing fields or incorrect values.
  Check Configuration: Review the configuration settings related to the BAdI and the purchasing process to ensure they are set up correctly.
  Authorization Check: Verify that the user has the necessary authorizations to execute the BAdI. This can be done through transaction SU53 to analyze authorization failures.
  Consult Documentation: If the BAdI is a standard SAP implementation, refer to the SAP documentation for any known issues or additional configuration steps that may be required.
  
  Related Information:
  
  BAdI Documentation: Check the SAP Help Portal or the specific documentation for the BAdI you are using to understand its purpose and any prerequisites.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide guidance on similar issues.
  Community Forums: Consider checking SAP Community forums or other user groups for discussions related to this error, as other users may have encountered and resolved similar issues.
  
  By following these steps, you should be able to identify and resolve the issue causing the WRF_WSUBST042 error in your SAP system.