How To Fix W#484 - Relevant distribution data already being processed by user &1

SAP Error Message - Details

• Message type: E = Error

• Message class: W# -

• Message number: 484

• Message text: Relevant distribution data already being processed by user &1

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 W#484 - Relevant distribution data already being processed by user &1 ?

  The SAP error message W#484 ("Relevant distribution data already being processed by user &1") typically occurs in the context of distribution or allocation processes, such as when dealing with cost distribution, internal orders, or similar transactions. This message indicates that the system has detected that the distribution data you are trying to process is already being handled by another user (the user ID is indicated by &1).
  Cause:
  
  Concurrent Processing: Another user is currently processing the same distribution data, which prevents you from accessing it simultaneously.
  Lock Mechanism: SAP uses a locking mechanism to ensure data integrity. When one user is working on a specific set of data, it is locked for others to prevent conflicts.
  Long-running Transactions: If a transaction takes a long time to complete, it may hold the lock for an extended period, causing other users to encounter this error.
  
  Solution:
  
  Wait and Retry: If you encounter this error, the simplest solution is to wait for the other user to complete their transaction and then try again.
  Check Active Sessions: If you have access, check the system for active sessions or locks. You can use transaction codes like SM12 (to view locks) or SM66 (to view active processes) to identify if another user is indeed processing the same data.
  Contact the User: If you can identify the user who is processing the data, you may want to reach out to them to see if they can complete their task or release the lock.
  System Administrator: If the issue persists and you cannot identify the user or if the lock seems to be stuck, contact your SAP system administrator. They can help release the lock if necessary.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM12 (to view and manage locks) and SM66 (to monitor active processes).
  User Training: Ensure that users are trained on how to handle distribution processes to minimize the chances of concurrent processing issues.
  System Performance: If long-running transactions are common, consider reviewing system performance and optimizing processes to reduce the time locks are held.
  
  By following these steps, you should be able to resolve the W#484 error and continue with your distribution tasks in SAP.