How To Fix WER162 - Method parameters and assigned value do not match

SAP Error Message - Details

• Message type: E = Error

• Message class: WER - Messages for the package WER

• Message number: 162

• Message text: Method parameters and assigned value do not match

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WER162 - Method parameters and assigned value do not match ?

  The SAP error message WER162: Method parameters and assigned value do not match typically occurs in ABAP Object-Oriented programming when there is a mismatch between the parameters defined in a method and the values assigned or passed to it.
  
  Cause
  
  Parameter Mismatch: The method is called or implemented with parameters that do not match the method signature in terms of:
  
  Number of parameters
  Data types of parameters
  Parameter passing mode (IMPORTING, EXPORTING, CHANGING)
  
  
  Incorrect Assignment: Assigning a value to a method parameter or attribute that is incompatible with the parameter's data type.
  Method Redefinition Issues: When redefining a method in a subclass, the parameters must exactly match the superclass method signature. Any deviation causes this error.
  Interface Implementation: When implementing an interface method, the parameters must match the interface definition exactly.
  
  
  Solution
  
  
  Check Method Signature:
  
  Verify the method definition in the class or interface.
  Ensure the number, order, and data types of parameters match exactly where the method is called or redefined.
  
  
  
  Check Parameter Passing Modes:
  
  Confirm that IMPORTING, EXPORTING, and CHANGING parameters are used correctly.
  For example, you cannot assign a value to an IMPORTING parameter inside the method.
  
  
  
  Correct Method Calls:
  
  When calling the method, ensure the parameters passed correspond to the method signature.
  For example, if the method expects two parameters, do not pass only one or three.
  
  
  
  Redefinition Consistency:
  
  When redefining a method in a subclass, the parameters must be identical to the superclass method.
  Use the REDEFINITION keyword properly and keep the signature consistent.
  
  
  
  Interface Implementation:
  
  When implementing interface methods, ensure the method signature matches the interface exactly.
  
  
  
  Data Type Compatibility:
  
  Make sure the data types of the parameters and the assigned values are compatible.
  Use explicit type conversions if necessary.
  
  
  
  
  Related Information
  
  ABAP Documentation: Refer to the ABAP keyword documentation for METHOD, IMPORTING, EXPORTING, CHANGING.
  Class Builder: Use the Class Builder (transaction SE24) to inspect method signatures.
  Debugging: Use the ABAP debugger to check the values and parameters at runtime.
  SAP Notes: Check SAP Notes for any known issues related to WER162.
  Example:
  
  CLASS lcl_example DEFINITION.
    PUBLIC SECTION.
      METHODS:
        my_method IMPORTING iv_param TYPE i
                  EXPORTING ev_result TYPE i.
  ENDCLASS.
  
  CLASS lcl_example IMPLEMENTATION.
    METHOD my_method.
      ev_result = iv_param * 2.
    ENDMETHOD.
  ENDCLASS.
  
  START-OF-SELECTION.
    DATA(lo_example) = NEW lcl_example( ).
    DATA(lv_result) TYPE i.
  
    " Correct call
    lo_example->my_method( iv_param = 5 ev_result = lv_result ).
  
    " Incorrect call - missing parameter or wrong type will cause WER162
  
  Summary
  
  
  
  Aspect
  Description
  
  
  
  
  Cause
  Mismatch between method parameters and assigned values (number, type, mode)
  
  
  Solution
  Align method signature and calls; check parameter types and passing modes
  
  
  Where to Check
  Method definition, method calls, redefinitions, interface implementations
  
  
  Tools
  SE24 (Class Builder), ABAP Debugger
  
  
  
  
  If you provide the specific code snippet or context where the error occurs, I can help you pinpoint the exact mismatch.