How To Fix CPF021 - No match: Parameter &1 has type &2, parameter &3 has type &4.

SAP Error Message - Details

• Message type: E = Error

• Message class: CPF -

• Message number: 021

• Message text: No match: Parameter &1 has type &2, parameter &3 has type &4.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CPF021 - No match: Parameter &1 has type &2, parameter &3 has type &4. ?

  The SAP error message CPF021 indicates a type mismatch between parameters in a function or method call. Specifically, it states that there is no match for the parameters being passed, where one parameter has a certain type and another parameter has a different type. This can occur in various programming contexts, such as ABAP or when working with function modules.
  Cause:
  The error is typically caused by one of the following:
  
  Type Mismatch: The parameters being passed to a function or method do not match the expected types defined in the function signature. For example, if a function expects an integer but receives a string, this error will occur.
  Incorrect Parameter Order: The parameters may be in the wrong order, leading to a mismatch in expected types.
  Data Type Definition: The data types of the variables being passed may not be compatible with the expected types in the function or method.
  
  Solution:
  To resolve the CPF021 error, you can take the following steps:
  
  Check Function Signature: Review the function or method signature to understand the expected parameter types. Ensure that the parameters you are passing match these types.
  Data Type Conversion: If there is a type mismatch, consider converting the data types of the parameters to match the expected types. For example, if a string needs to be converted to an integer, use appropriate conversion functions.
  Parameter Order: Verify that the parameters are being passed in the correct order as defined in the function or method.
  Debugging: Use debugging tools to step through the code and inspect the values and types of the parameters being passed to identify where the mismatch occurs.
  Documentation: Refer to the SAP documentation for the specific function or method to ensure you are using it correctly.
  
  Related Information:
  
  ABAP Data Types: Familiarize yourself with the various data types in ABAP, such as CHAR, NUMC, INT, etc., to ensure proper usage.
  Function Module Documentation: Check the SAP function module documentation for details on parameter types and expected values.
  Error Handling: Implement error handling in your code to gracefully manage type mismatches and provide informative error messages.
  
  By following these steps, you should be able to identify and resolve the cause of the CPF021 error in your SAP environment.