How To Fix KW343 - Parameter & is already assigned to another ABAP-parameter

SAP Error Message - Details

• Message type: E = Error

• Message class: KW - CO-ABC Activity-Based Costing

• Message number: 343

• Message text: Parameter & is already assigned to another ABAP-parameter

What causes this issue?

The parameter &V1& is already being used for the ABAP-Parameter &V2& in
the environment &V3&.

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?

Please choose another parameter name for the ABAP-Parameter &V4&.

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 KW343 - Parameter & is already assigned to another ABAP-parameter ?

  The SAP error message KW343 indicates that a parameter you are trying to assign in your ABAP program is already assigned to another parameter. This typically occurs when you are working with function modules, methods, or subroutines and you attempt to use the same parameter name for different purposes within the same scope.
  Cause:
  
  Duplicate Parameter Names: You have defined a parameter with the same name in the same context (e.g., in a function module or method) that is already being used by another parameter.
  Scope Conflicts: The parameter might be defined in a broader scope (like a global variable) and you are trying to redefine it in a more local scope (like a method or function).
  Incorrect Parameter Mapping: When calling a function module or method, if you are trying to map parameters incorrectly, it can lead to this error.
  
  Solution:
  
  Rename Parameters: The simplest solution is to rename the conflicting parameter to ensure that each parameter has a unique name within the same scope.
  Check Parameter Definitions: Review the definitions of the parameters in your function module or method to ensure that there are no duplicates.
  Use Unique Names: When defining parameters, especially in larger programs or modules, use unique and descriptive names to avoid conflicts.
  Review Function Calls: If the error occurs during a function call, check the parameter mapping to ensure that you are not trying to assign a value to a parameter that is already in use.
  
  Related Information:
  
  ABAP Development Guidelines: Follow best practices for naming conventions in ABAP to avoid such conflicts.
  Debugging: Use the ABAP debugger to step through your code and identify where the parameter conflict is occurring.
  Documentation: Refer to SAP documentation for guidelines on parameter handling in function modules and methods.
  
  By addressing the naming conflicts and ensuring that each parameter is uniquely defined, you should be able to resolve the KW343 error.