How To Fix SMT071 - Call-up error Execute: Parameter &1 must be of type &2 and not &3

SAP Error Message - Details

• Message type: E = Error

• Message class: SMT -

• Message number: 071

• Message text: Call-up error Execute: Parameter &1 must be of type &2 and not &3

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SMT071 - Call-up error Execute: Parameter &1 must be of type &2 and not &3 ?

  The SAP error message SMT071 indicates a call-up error where a parameter passed to a function or method does not match the expected data type. Specifically, the message states that a parameter (&1) must be of a certain type (&2), but it is currently of a different type (&3). This type mismatch can occur in various scenarios, such as when calling a function module, method, or when passing parameters in ABAP programs.
  Cause
  The error typically arises due to one of the following reasons:
  
  Data Type Mismatch: The parameter being passed does not match the expected data type defined in the function or method signature.
  Incorrect Variable Declaration: The variable used to pass the parameter may have been declared with the wrong data type.
  Changes in Function Module/Method Signature: If the function module or method has been modified (e.g., during an upgrade or enhancement), the expected parameter types may have changed.
  Incorrect Data Conversion: If there is an implicit or explicit conversion that fails, it can lead to this error.
  
  Solution
  To resolve the SMT071 error, follow these steps:
  
  
  Check the Function Module/Method Signature:
  
  Review the documentation or the definition of the function module or method you are calling. Ensure you understand the expected data types for each parameter.
  
  
  
  Verify Parameter Types:
  
  Check the data types of the variables you are passing as parameters. Ensure they match the expected types. You can do this by using the ABAP Data Dictionary (SE11) or by checking the function module in SE37.
  
  
  
  Adjust Variable Declarations:
  
  If you find that the variable types do not match, adjust the declarations accordingly. For example, if a parameter expects a CHAR type and you are passing a NUMC, you will need to convert the variable to the correct type.
  
  
  
  Use Type Conversion Functions:
  
  If necessary, use ABAP type conversion functions (like CONCATENATE, CONVERT, etc.) to convert the data types appropriately before passing them to the function/module.
  
  
  
  Debugging:
  
  If the issue persists, use the ABAP debugger to step through the code and inspect the values and types of the parameters being passed at runtime.
  
  
  
  Check for Enhancements or Modifications:
  
  If the function module or method has been enhanced or modified, ensure that your code is compatible with the latest version.
  
  
  
  Related Information
  
  Transaction Codes: 
  
  SE37 (Function Module), SE80 (Object Navigator), SE11 (Data Dictionary).
  
  
  ABAP Documentation: Review the official SAP documentation for the specific function module or method to understand its parameters and expected data types.
  SAP Notes: Check SAP Notes for any known issues or patches related to the function module or method you are using.
  
  By following these steps, you should be able to identify and resolve the cause of the SMT071 error in your SAP environment.