How To Fix EB121 - Processing canceled; an exception was triggered in the user exit

SAP Error Message - Details

• Message type: E = Error

• Message class: EB - IS-U invoicing

• Message number: 121

• Message text: Processing canceled; an exception was triggered in the user exit

What causes this issue?

You have embedded a user-defined function in program &V1&. It uses
function module &V2&. An exception was triggered.

System Response

INCLUDE ISU_VERARB OBJECT DOKU ID TX

How to fix this error?

If you do not want the exception to occur, modify your function to fit
the changed data situation.

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 EB121 - Processing canceled; an exception was triggered in the user exit ?

  The SAP error message EB121, which states "Processing canceled; an exception was triggered in the user exit," typically indicates that a user exit (a point in the SAP program where custom code can be executed) has encountered an issue that caused the processing to be halted. This can happen for various reasons, including coding errors, incorrect data, or unexpected conditions in the user exit.
  Causes:
  
  Coding Errors: There may be bugs or logical errors in the custom code implemented in the user exit.
  Data Issues: The data being processed may not meet the expected criteria, leading to exceptions being raised.
  Configuration Issues: Incorrect configuration settings in the related modules can lead to unexpected behavior.
  Uncaught Exceptions: The user exit may not be handling exceptions properly, leading to an abrupt termination of processing.
  
  Solutions:
  
  Debugging: Use the SAP debugger to step through the user exit code to identify where the exception is being triggered. Look for any RAISE statements or conditions that could lead to an exception.
  Review Code: Check the custom code for any logical errors or assumptions that may not hold true for the current data set.
  Error Handling: Ensure that the user exit has proper error handling in place to manage exceptions gracefully instead of terminating the process.
  Data Validation: Validate the input data being processed to ensure it meets the expected criteria before it reaches the user exit.
  Consult Documentation: Review any documentation related to the user exit to understand its intended use and any known issues.
  Check Configuration: Verify that the configuration settings in the relevant modules are correct and align with the expected behavior of the user exit.
  
  Related Information:
  
  User Exits: User exits are part of the SAP enhancement framework, allowing developers to add custom functionality without modifying the standard SAP code.
  Transaction Codes: You may want to check transaction codes like SE80 (Object Navigator) or SE37 (Function Module) to locate and analyze the user exit.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address known issues or provide guidance on the specific user exit in question.
  Testing: After making changes, thoroughly test the user exit with various data scenarios to ensure that the issue is resolved and that no new issues are introduced.
  
  If the problem persists after following these steps, it may be beneficial to consult with an SAP expert or reach out to SAP support for further assistance.