How To Fix FMCA_MC_ODATA057 - User ID &1 is already in use

SAP Error Message - Details

• Message type: E = Error

• Message class: FMCA_MC_ODATA - Message class for the Multichannel oData services(PS)

• Message number: 057

• Message text: User ID &1 is already in use

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 FMCA_MC_ODATA057 - User ID &1 is already in use ?

  The SAP error message FMCA_MC_ODATA057, which states "User ID &1 is already in use," typically occurs in the context of OData services or when multiple sessions are trying to access the same user ID simultaneously. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Concurrent Sessions: The user ID specified in the error message is already logged in or is being used in another session. This can happen if a user has multiple sessions open or if a session was not properly closed.
  Session Timeout: If a session times out and is not properly terminated, it may still be considered active by the system.
  Locking Mechanism: SAP has a locking mechanism to prevent data inconsistencies, and if a user ID is locked due to an ongoing process, it may trigger this error.
  
  Solutions:
  
  Log Out Other Sessions: If you have multiple sessions open, log out of the other sessions. You can check active sessions in the SAP GUI using transaction code SM04 or AL08 to see which sessions are active for your user ID.
  Terminate Sessions: If you find that there are sessions that are no longer needed, you can terminate them from the session overview (using SM04 or AL08).
  Wait and Retry: If the user ID is in use by another process, you may need to wait until that process is completed before trying again.
  Check for Background Jobs: Sometimes, background jobs may be using the user ID. Check transaction SM37 to see if there are any jobs running under your user ID.
  Contact Administrator: If you are unable to resolve the issue, contact your SAP system administrator. They can help identify if there are any locks or issues with the user ID and can assist in unlocking it if necessary.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP Notes can provide additional context or solutions.
  User Management: Familiarize yourself with user management in SAP, including how to manage sessions and user locks.
  OData Services: If you are working with OData services, ensure that your service is correctly configured and that there are no issues with the service itself that could be causing the user ID to be locked.
  
  By following these steps, you should be able to resolve the FMCA_MC_ODATA057 error and regain access to the system.