How To Fix LF120 - Posting change document &1 is being processed by another user

SAP Error Message - Details

• Message type: E = Error

• Message class: LF - Mobile Computing in Warehouse Logistics

• Message number: 120

• Message text: Posting change document &1 is being processed by another user

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 LF120 - Posting change document &1 is being processed by another user ?

  The SAP error message LF120, which states "Posting change document &1 is being processed by another user," typically occurs in the context of inventory management or logistics when a user attempts to process a change document that is currently being accessed or modified by another user. This can happen in various scenarios, such as during stock transfers, inventory adjustments, or other related transactions.
  Cause:
  
  Concurrent Access: Another user is currently processing the same change document, leading to a lock on that document.
  Long-running Transactions: If a transaction takes a long time to complete, it can lead to other users being unable to access the same document until the first transaction is finished.
  System Configuration: Certain configurations in the SAP system may lead to locking issues, especially in high-transaction environments.
  
  Solution:
  
  Wait and Retry: The simplest solution is to wait for a few moments and then try to process the document again. If the other user completes their transaction, the lock will be released.
  Identify the Lock: Use transaction code SM12 to check for locks in the system. You can identify which user is holding the lock on the document and, if necessary, contact them to understand the situation.
  Transaction Monitoring: If the lock persists for an unusually long time, it may be necessary to investigate the transaction that is holding the lock. This can involve checking transaction logs or consulting with the user who is processing the document.
  System Configuration Review: If this issue occurs frequently, it may be worth reviewing the system configuration and performance. Consider optimizing processes or increasing system resources if necessary.
  User Training: Ensure that users are trained on how to handle transactions efficiently to minimize the time locks are held.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (to view locks), SM21 (to view system logs), and ST22 (to check for dumps).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  User Roles and Authorizations: Ensure that users have the appropriate roles and authorizations to perform the necessary transactions without causing unnecessary locks.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or technical support for further investigation.