How To Fix OL849 - Parameter '&' does not correspond to the definition in method '&' of '&'

SAP Error Message - Details

• Message type: E = Error

• Message class: OL - Workflow object types: Run-time system

• Message number: 849

• Message text: Parameter '&' does not correspond to the definition in method '&' of '&'

What causes this issue?

The method is inherited from a super type or interface type. The
parameter definition of this method must not be changed. The current
parameter definition, however, does not correspond to that of the super
type.

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?

Check the parameter definition and, if necessary, cancel the super-
definition of the parameter concerned.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message OL849 - Parameter '&' does not correspond to the definition in method '&' of '&' ?

  The SAP error message OL849 indicates that there is a mismatch between the parameters defined in a method and the parameters being passed to that method. This typically occurs in ABAP programming when the method signature does not match the actual parameters being used in the call.
  Cause:
  
  
  Parameter Mismatch: The parameters being passed to the method do not match the expected parameters defined in the method's interface. This could be due to:
  
  Incorrect parameter names.
  Incorrect data types.
  Missing parameters.
  Extra parameters that are not defined in the method.
  
  
  
  Changes in Method Definition: If the method was modified (e.g., parameters were added, removed, or renamed) but the calling code was not updated accordingly, this error can occur.
  
  
  Inheritance Issues: If the method is part of a class hierarchy and the method is overridden, the parameters in the subclass method must match those in the superclass method.
  
  
  Solution:
  
  
  Check Method Definition: Review the method definition in the class or interface to ensure that the parameters are correctly defined. Verify the names, types, and order of the parameters.
  
  
  Update Calling Code: If the method definition has changed, update the calling code to match the new method signature. Ensure that all required parameters are provided and that no extra parameters are included.
  
  
  Use Correct Parameter Names: Ensure that the parameter names used in the method call match those defined in the method signature.
  
  
  Check for Inheritance Issues: If the method is part of a class hierarchy, ensure that the overridden method in the subclass has the same parameter signature as the method in the superclass.
  
  
  Debugging: Use debugging tools to step through the code and identify where the mismatch occurs. This can help pinpoint the exact location of the error.
  
  
  Related Information:
  
  ABAP Documentation: Refer to the official SAP documentation for ABAP programming to understand method definitions and parameter handling.
  SAP Community: Engage with the SAP Community forums for insights and solutions from other developers who may have encountered similar issues.
  Code Review: Conduct a code review with peers to identify potential issues in the method calls and definitions.
  
  By following these steps, you should be able to resolve the OL849 error and ensure that your method calls are correctly aligned with their definitions.