How To Fix EWA856 - &3 &2 is a reference parameter in the signature of function &1.

SAP Error Message - Details

• Message type: E = Error

• Message class: EWA - IS-U-WA: Waste Management

• Message number: 856

• Message text: &3 &2 is a reference parameter in the signature of function &1.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message EWA856 - &3 &2 is a reference parameter in the signature of function &1. ?

  The SAP error message EWA856 indicates that there is an issue with the signature of a function module in your ABAP code. Specifically, it suggests that a reference parameter is being used incorrectly. Here’s a breakdown of the error message and how to address it:
  Cause:
  
  
  Reference Parameter Misuse: The error occurs when a reference parameter (denoted by REF TO) is not being used correctly in the function module's signature. This can happen if:
  
  The parameter is not declared as a reference type in the function module.
  The calling program is not passing the parameter correctly.
  There is a mismatch in the expected type of the reference parameter.
  
  
  
  Incorrect Function Module Definition: If the function module is defined incorrectly, it may lead to this error when it is called.
  
  
  Solution:
  
  
  Check Function Module Definition:
  
  Go to the function module in transaction SE37 or SE80.
  Verify that the parameter in question is defined as a reference parameter (using REF TO).
  Ensure that the data type of the reference parameter is correct and matches what is expected.
  
  
  
  Review Calling Program:
  
  Check the ABAP code where the function module is being called.
  Ensure that the variable being passed as the reference parameter is declared correctly and is of the appropriate type.
  Make sure that you are passing the variable by reference, if required.
  
  
  
  Adjust Parameter Passing:
  
  If the function module expects a reference to an object, ensure that you are passing an instance of that object.
  If necessary, create an instance of the object before passing it to the function module.
  
  
  
  Testing:
  
  After making the necessary changes, test the function module call again to ensure that the error is resolved.
  
  
  
  Related Information:
  
  ABAP Documentation: Review the SAP documentation on function modules and parameter types to understand how reference parameters work.
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide additional guidance on this error.
  Debugging: Use the ABAP debugger to step through the code and inspect the values and types of the parameters being passed to the function module.
  
  By following these steps, you should be able to identify and resolve the issue causing the EWA856 error message in your SAP system.