How To Fix 00490 - No conversation ID found in argument vector

SAP Error Message - Details

• Message type: E = Error

• Message class: 00 -

• Message number: 490

• Message text: No conversation ID found in argument vector

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message 00490 - No conversation ID found in argument vector ?

  The SAP error message "00490 No conversation ID found in argument vector" typically indicates an issue with the communication between the SAP system and an external system or service. This error can occur in various contexts, such as when using Remote Function Calls (RFC), Business Application Programming Interfaces (BAPIs), or when integrating with other systems.
  Cause:
  
  Missing or Incorrect Conversation ID: The error suggests that the system is expecting a conversation ID to manage the communication session, but it is not found in the argument vector. This can happen if the conversation ID is not being passed correctly in the function call.
  Configuration Issues: There may be configuration issues in the RFC destination or the external system that prevent the conversation ID from being established or recognized.
  Network Issues: Network problems or interruptions can lead to the loss of the conversation ID during communication.
  Programming Errors: If custom code is involved, there may be programming errors that lead to the conversation ID not being set or passed correctly.
  
  Solution:
  
  Check Function Module/Method Calls: Review the function module or method that is being called to ensure that the conversation ID is being passed correctly. Ensure that all required parameters are included.
  Review RFC Destination Configuration: Check the configuration of the RFC destination in transaction SM59. Ensure that the destination is correctly set up and that the connection parameters are valid.
  Network Connectivity: Verify that there are no network issues between the SAP system and the external system. Check for firewalls, routing issues, or other network-related problems.
  Debugging: If you have access to the code, use debugging tools to trace the execution and see where the conversation ID is expected but not found. This can help identify the root cause.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates that resolve known issues related to this error message.
  Consult Documentation: Review the documentation for the specific function module or BAPI you are using to ensure that you are following the correct usage patterns.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like SM21 (System Log) or ST22 (Dump Analysis) to check for any related logs or dumps that could provide more context about the error.
  SAP Community: Consider searching or posting in the SAP Community forums for additional insights from other users who may have encountered the same issue.
  SAP Support: If the issue persists and you have a support contract, consider reaching out to SAP Support for assistance.
  
  By following these steps, you should be able to diagnose and resolve the "No conversation ID found in argument vector" error in your SAP environment.