CLS_S4_CONV002 - Invalid call; Either object type or class type needs to be provided

SAP Error Message - Details

• Message type: E = Error

• Message class: CLS_S4_CONV - S/4 HANA: Classification Conversion Messages

• Message number: 002

• Message text: Invalid call; Either object type or class type needs to be provided

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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AnswerBot

• What is the cause and solution for SAP error message CLS_S4_CONV002 - Invalid call; Either object type or class type needs to be provided ?

  The SAP error message CLS_S4_CONV002 indicates that there is an invalid call due to the absence of either an object type or a class type in the context where it is expected. This error typically arises in scenarios involving class-based programming in ABAP, particularly when dealing with object-oriented features.
  Cause:
  
  Missing Object/Class Type: The error occurs when a method or function that requires an object or class type is called without providing the necessary parameters.
  Incorrect Method Call: The method being called may not be defined correctly, or the parameters being passed do not match the expected types.
  Dynamic Calls: If you are using dynamic calls (e.g., using CALL METHOD or CREATE OBJECT), the object or class type may not be correctly specified or may not exist in the current context.
  
  Solution:
  
  Check Method Calls: Review the method calls in your code to ensure that you are passing the correct object or class type. Make sure that the method signature matches the parameters you are providing.
  Define Object/Class Types: Ensure that the object or class type is defined and accessible in the scope where you are trying to use it. If you are using a dynamic call, ensure that the class exists and is correctly referenced.
  Debugging: Use the ABAP debugger to step through the code and identify where the error occurs. Check the values of the variables being passed to the method to ensure they are not null or undefined.
  Check for Typos: Ensure there are no typographical errors in the class or method names.
  Review Documentation: If you are using standard SAP classes or methods, refer to the SAP documentation to ensure you are using them correctly.
  
  Related Information:
  
  ABAP Object-Oriented Programming: Familiarize yourself with the principles of object-oriented programming in ABAP, including class definitions, method calls, and object instantiation.
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific classes or methods you are using.
  Community Forums: Consider searching or posting in SAP community forums or Stack Overflow for additional insights from other developers who may have encountered similar issues.
  
  By following these steps, you should be able to identify the root cause of the CLS_S4_CONV002 error and implement a solution to resolve it.