How To Fix STW_OL001 - Contract violation when processing method &1: parameter &2 is initial

STW_OL001 - Overview

• Message type: E = Error

• Message class: STW_OL - Messages of the Object Layer (Stream Work Library)

• Message number: 001

• Message text: Contract violation when processing method &1: parameter &2 is initial

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message STW_OL001 - Contract violation when processing method &1: parameter &2 is initial ?

  The SAP error message STW_OL001 indicates a contract violation when processing a method, specifically stating that a parameter is initial (i.e., it has not been assigned a value). This error typically occurs in the context of Object-Oriented ABAP programming, where methods are defined with specific parameters that must be provided when the method is called.
  
  Cause:
  
  Missing Parameter Value: The most common cause of this error is that a required parameter for a method is not being passed or is being passed as an initial value (null or empty).
  Incorrect Method Call: The method may be called incorrectly, either by not providing all required parameters or by providing them in the wrong order.
  Contract Violation: The method's contract specifies that certain parameters must not be initial, and if they are, it results in this error.
  
  
  Solution:
  
  Check Method Definition: Review the method definition to understand which parameters are required and ensure that you are providing values