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

FMCA_MC_ODATA057 - Overview

• 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.

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 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