How To Fix RLFW438 - Return code of function &1 was &2.

SAP Error Message - Details

• Message type: E = Error

• Message class: RLFW - Messages for runlevel framework

• Message number: 438

• Message text: Return code of function &1 was &2.

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 RLFW438 - Return code of function &1 was &2. ?

  The SAP error message RLFW438 indicates that there is an issue with a function module that has returned an unexpected return code. The message format is typically as follows:
  RLFW438 Return code of function &1 was &2.
  Cause
  The error message is generated when a function module (indicated by &1) is called, and it returns a return code (&2) that is not expected or is outside the normal range of return codes. This can happen for several reasons, including:
  
  Incorrect Input Parameters: The parameters passed to the function module may be incorrect or not in the expected format.
  Business Logic Errors: There may be a logical error in the business process that leads to the function module returning an error.
  Configuration Issues: The system configuration may not be set up correctly, leading to unexpected behavior.
  Authorization Issues: The user executing the function may not have the necessary authorizations to perform the action.
  System Errors: There could be underlying system issues, such as database connectivity problems or other runtime errors.
  
  Solution
  To resolve the RLFW438 error, you can follow these steps:
  
  
  Check the Function Module: Identify the function module that is causing the issue (replace &1 with the actual function name). Review its documentation to understand the expected input parameters and return codes.
  
  
  Review Input Parameters: Ensure that the parameters being passed to the function module are correct and valid. Check for any required fields that may be missing.
  
  
  Analyze Return Code: Look up the specific return code (&2) in the SAP documentation or the function module's documentation to understand what it signifies. This can provide insights into what went wrong.
  
  
  Debugging: If you have access to the ABAP debugger, you can set breakpoints in the function module to analyze the flow and see where it fails.
  
  
  Check Authorizations: Ensure that the user executing the function has the necessary authorizations to perform the action.
  
  
  Consult Logs: Check the application logs (transaction SLG1) or system logs (transaction SM21) for any additional error messages or warnings that may provide more context.
  
  
  Contact SAP Support: If the issue persists and you cannot determine the cause, consider reaching out to SAP support with detailed information about the error, including the function module name, return code, and any relevant logs.
  
  
  Related Information
  
  Function Module Documentation: You can access the documentation for the specific function module in the SAP system using transaction SE37 or SE80.
  Return Codes: Familiarize yourself with common return codes for the function modules you are working with, as they can provide insights into the nature of the error.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address known issues related to the function module or return codes.
  
  By following these steps, you should be able to diagnose and resolve the RLFW438 error effectively.