How To Fix FZ639 - > Reason for error & occurred, output routine must be extended

SAP Error Message - Details

• Message type: E = Error

• Message class: FZ - Payment Transactions

• Message number: 639

• Message text: > Reason for error & occurred, output routine must be extended

What causes this issue?

In the payment program, an error reason was set for which no
appropriate message was defined.

System Response

Only this general error message can be issued.

How to fix this error?

Contact the responsible hotline. Tell the person you contact the number
of the reason for the error.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FZ639 - > Reason for error & occurred, output routine must be extended ?

  The SAP error message FZ639, which states "Reason for error & occurred, output routine must be extended," typically occurs in the context of output determination in SAP, particularly when dealing with billing documents, sales orders, or other output-related processes. This error indicates that the system has encountered a situation where the output routine (the logic that determines how outputs are processed) is not sufficient to handle the current scenario.
  Cause of the Error:
  
  Missing Output Routine: The output routine that is supposed to handle the specific condition or type of output is not defined or is incomplete.
  Custom Development: If there are custom developments or modifications in the output determination process, they may not be properly integrated or may lack the necessary logic to handle certain cases.
  Configuration Issues: Incorrect configuration in the output determination settings can lead to this error. This includes missing conditions or incorrect access sequences.
  Data Issues: The data being processed may not meet the expected criteria for the existing output routines, leading to the error.
  
  Solution:
  
  
  Check Output Determination Configuration:
  
  Go to the output determination configuration in the relevant module (e.g., Sales and Distribution, Finance).
  Verify that the output types, access sequences, and condition records are correctly set up.
  Ensure that the output routine is defined for the specific output type you are trying to process.
  
  
  
  Extend the Output Routine:
  
  If you have access to the ABAP development environment, you may need to extend the output routine to handle the specific case that is causing the error.
  This involves modifying the existing output routine or creating a new one that includes the necessary logic to process the output correctly.
  
  
  
  Check for Custom Code:
  
  If there are any custom enhancements or modifications related to output determination, review the code to ensure it is functioning as intended.
  Debugging the output routine can help identify where the logic is failing.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to output determination for any known issues or additional configuration steps that may be required.
  
  
  
  Testing:
  
  After making changes, perform thorough testing to ensure that the output determination works correctly for all relevant scenarios.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like NACE (for output types) or VV21 (for condition records) to access the relevant configuration settings.
  SAP Notes: Check SAP Notes for any updates or patches related to output determination that may address known issues.
  Debugging: Use the ABAP debugger to step through the output determination process to identify where the error occurs.
  
  If the issue persists after following these steps, it may be beneficial to consult with an SAP functional consultant or developer who specializes in the relevant module.