How To Fix C$712 - Function &: Incorrect export parameter type &

SAP Error Message - Details

• Message type: E = Error

• Message class: C$ -

• Message number: 712

• Message text: Function &: Incorrect export parameter type &

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message C$712 - Function &: Incorrect export parameter type & ?

  The SAP error message C$712, which states "Function &: Incorrect export parameter type &," typically occurs when there is a mismatch between the expected data type of an export parameter in a function module and the actual data type being passed to it. This can happen in various scenarios, such as when calling a function module from ABAP code or when using RFC (Remote Function Call).
  Cause:
  
  Data Type Mismatch: The most common cause is that the data type of the variable you are passing to the function module does not match the expected data type defined in the function module's interface.
  Incorrect Parameter Name: Sometimes, the parameter name might be misspelled or incorrectly referenced.
  Structure vs. Simple Data Type: If the function expects a simple data type (like CHAR, INT, etc.) but you are passing a structure or a different type, this error can occur.
  Versioning Issues: If the function module has been changed (e.g., new parameters added or existing ones modified) and the calling program has not been updated accordingly, this can lead to mismatches.
  
  Solution:
  
  Check Function Module Interface: Go to the function module in transaction SE37 or SE80 and check the interface definition. Ensure that the data types of the parameters you are passing match the expected types.
  Adjust Data Types: If there is a mismatch, adjust the data type of the variable you are passing to match the expected type. This may involve converting data types or changing the structure of the data being passed.
  Review Parameter Names: Ensure that you are using the correct parameter names as defined in the function module. Check for any typos or incorrect references.
  Update Calling Program: If the function module has been modified, ensure that the calling program is updated to reflect these changes. This may involve modifying the code to accommodate new parameters or changes in existing ones.
  Testing: After making the necessary adjustments, test the function call again to ensure that the error is resolved.
  
  Related Information:
  
  Transaction Codes: Use SE37 to view and edit function modules, and SE80 for a broader view of the object repository.
  Data Type Conversions: Familiarize yourself with ABAP data type conversion functions if you need to convert between different types.
  Debugging: Use the ABAP debugger to step through the code and inspect the values and types of the parameters being passed to the function module.
  Documentation: Refer to SAP documentation or help files for specific function modules to understand their expected parameters and usage.
  
  By following these steps, you should be able to identify and resolve the cause of the C$712 error in your SAP environment.