How To Fix 67_RFC004 - Error when converting import parameters to SAP internal format

SAP Error Message - Details

• Message type: E = Error

• Message class: 67_RFC - Message Class for RFC Modules

• Message number: 004

• Message text: Error when converting import parameters to SAP internal format

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message 67_RFC004 - Error when converting import parameters to SAP internal format ?

  The SAP error message 67_RFC004 indicates that there is an issue with converting import parameters to the internal format used by SAP. This error typically occurs in the context of Remote Function Calls (RFC) when the data being sent to an SAP function module does not match the expected format or data type.
  Causes:
  
  Data Type Mismatch: The data types of the parameters being passed do not match the expected types defined in the SAP function module.
  Length Issues: The length of the data being sent exceeds the maximum length defined for the parameter in the function module.
  Invalid Characters: The data may contain invalid characters that cannot be processed by SAP.
  Null or Empty Values: Passing null or empty values for mandatory parameters can also lead to this error.
  Incorrect Structure: If you are passing a structure or table, the structure may not match the expected format.
  
  Solutions:
  
  Check Data Types: Ensure that the data types of the parameters being passed match the expected types in the SAP function module. For example, if a parameter expects a string, ensure you are not passing an integer.
  Validate Lengths: Check the maximum length of each parameter in the function module and ensure that the data being sent does not exceed these limits.
  Sanitize Input: Remove any invalid characters from the data being sent. This may involve trimming whitespace or removing special characters.
  Provide Mandatory Values: Ensure that all mandatory parameters are being provided with valid values.
  Review Structures: If you are passing complex data types (like structures or tables), ensure that they are defined correctly and match the expected format in the SAP function module.
  Debugging: Use debugging tools in SAP to trace the RFC call and identify the exact parameter causing the issue.
  
  Related Information:
  
  RFC Documentation: Review the documentation for the specific RFC function module you are calling to understand the expected input parameters and their formats.
  SAP Notes: Check SAP Notes for any known issues or patches related to the function module you are using.
  Transaction Codes: Use transaction codes like SE37 (Function Builder) to view the function module and its parameters.
  Error Logs: Check the system logs (transaction SM21) for additional error messages that may provide more context about the issue.
  
  By following these steps, you should be able to identify and resolve the cause of the 67_RFC004 error in your SAP environment.