How To Fix INV302 - Methos &1 of class &2 called with impermissible parameters

SAP Error Message - Details

• Message type: E = Error

• Message class: INV - Check for Bill Receipt

• Message number: 302

• Message text: Methos &1 of class &2 called with impermissible parameters

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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Smart SAP Assistant

• What is the cause and solution for SAP error message INV302 - Methos &1 of class &2 called with impermissible parameters ?

  The SAP error message INV302, which states "Method &1 of class &2 called with impermissible parameters," typically indicates that a method in an ABAP class was invoked with parameters that do not meet the expected criteria. This can occur due to various reasons, such as incorrect data types, missing required parameters, or parameters that are out of the expected range.
  Causes:
  
  Incorrect Parameter Types: The parameters passed to the method do not match the expected data types defined in the method signature.
  Missing Parameters: Required parameters are not provided when calling the method.
  Invalid Values: The values of the parameters do not conform to the expected constraints (e.g., a negative number where only positive numbers are allowed).
  Method Signature Changes: If the method signature has changed (e.g., in a newer version of the class), and the calling code has not been updated accordingly.
  Incorrect Object Instantiation: The object of the class may not have been instantiated correctly, leading to method calls on an invalid object.
  
  Solutions:
  
  Check Method Signature: Review the method signature in the class definition to ensure that the parameters being passed are correct in terms of type and number.
  Validate Parameter Values: Ensure that the values being passed to the method are valid and within the expected range.
  Update Calling Code: If the method signature has changed, update the calling code to match the new signature.
  Debugging: Use debugging tools in SAP to trace the method call and inspect the parameters being passed. This can help identify where the issue lies.
  Consult Documentation: Refer to the SAP documentation or the class documentation to understand the expected parameters and their constraints.
  
  Related Information:
  
  ABAP Development: Understanding ABAP programming and object-oriented concepts is crucial for troubleshooting this error.
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific class or method you are working with.
  Community Forums: SAP Community and other forums can be helpful for finding similar issues faced by other developers and their solutions.
  
  If you continue to face issues after checking the above points, consider reaching out to your SAP support team or consulting with an experienced ABAP developer for further assistance.