How To Fix 42231 - Export parameters are not possible in the interface

SAP Error Message - Details

• Message type: E = Error

• Message class: 42 - Information Workbench

• Message number: 231

• Message text: Export parameters are not possible in the interface

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 42231 - Export parameters are not possible in the interface ?

  The SAP error message 42231 indicates that there is an issue with the interface of a function module or method where export parameters are not allowed. This typically occurs when you are trying to use a function module or method that is not designed to return data through export parameters, or when the interface is not correctly defined.
  Cause:
  
  Incorrect Function Module/Method Usage: You may be trying to call a function module or method that does not support export parameters.
  Interface Definition: The function module or method may be defined with only importing parameters and no exporting parameters.
  Calling Convention: The way you are calling the function module or method may not align with its defined interface.
  
  Solution:
  
  
  Check the Function Module/Method Definition:
  
  Go to transaction SE37 (for function modules) or SE80 (for methods in classes) and check the interface of the function module or method you are trying to use.
  Ensure that it has export parameters defined. If it does not, you will need to adjust your code accordingly.
  
  
  
  Modify Your Code:
  
  If the function module or method does not have export parameters, you should use the importing parameters to get the required data or check if there is an alternative function module/method that provides the needed export parameters.
  If you need to return data, consider using tables (e.g., changing export parameters to tables) or using a different approach to retrieve the data.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation or help files related to the specific function module or method to understand its intended use and limitations.
  
  
  
  Debugging:
  
  If you are unsure why the error is occurring, you can use the debugger to step through the code and see how the function module or method is being called.
  
  
  
  Related Information:
  
  Function Module/Method Documentation: Always refer to the official SAP documentation for the specific function module or method to understand its parameters and expected behavior.
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide additional guidance on the function module or method you are using.
  Community Forums: Consider searching or posting on SAP community forums (like SAP Community or Stack Overflow) for additional insights from other developers who may have encountered the same issue.
  
  By following these steps, you should be able to resolve the error message 42231 and successfully work with the function module or method in question.