How To Fix 00399 - Batch input: Unknown return code

SAP Error Message - Details

• Message type: E = Error

• Message class: 00 -

• Message number: 399

• Message text: Batch input: Unknown return code

What causes this issue?

Internal error of batch input monitoring
Adapt PERFORM SEND_MSG

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Note the error situation and contact your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 00399 - Batch input: Unknown return code ?

  The SAP error message "00399 Batch input: Unknown return code" typically occurs during batch input processing when the system encounters an unexpected return code that it does not recognize. This can happen in various scenarios, such as during data uploads, batch input sessions, or when using transaction codes that involve batch processing.
  Causes:
  
  Incorrect Batch Input Session: The batch input session may have been created incorrectly or may contain invalid data.
  System Configuration Issues: There may be configuration issues in the SAP system that lead to unexpected return codes.
  Authorization Problems: The user executing the batch input may not have the necessary authorizations to perform the actions defined in the batch input session.
  Program Errors: There could be bugs or errors in the custom programs or standard SAP programs that handle the batch input.
  Data Issues: The data being processed may not conform to the expected format or may contain invalid entries.
  
  Solutions:
  
  Check Batch Input Session: Review the batch input session for any errors or inconsistencies. You can do this using transaction SM35 to analyze the session logs.
  Review Return Codes: Look at the return codes generated during the batch input process. This can provide insights into what went wrong.
  Debugging: If you have access to debugging tools, you can debug the batch input program to identify where the unknown return code is being generated.
  Check Authorizations: Ensure that the user executing the batch input has the necessary authorizations to perform the actions defined in the session.
  Data Validation: Validate the data being processed to ensure it meets the required format and constraints.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide patches or updates.
  Contact SAP Support: If the issue persists and cannot be resolved through the above steps, consider reaching out to SAP Support for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM35 (Batch Input Monitoring) and SE37 (Function Module) to analyze and troubleshoot batch input sessions.
  Batch Input Documentation: Review SAP documentation on batch input processing for best practices and guidelines.
  Error Logs: Check the system logs (transaction SLG1) for any additional error messages that may provide context for the issue.
  
  By following these steps, you should be able to identify the cause of the "00399 Batch input: Unknown return code" error and implement a solution.