How To Fix 0D645 - Document &1 &2 is being used by another RFC user

SAP Error Message - Details

• Message type: E = Error

• Message class: 0D - FS-CD General Messages

• Message number: 645

• Message text: Document &1 &2 is being used by another RFC user

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 0D645 - Document &1 &2 is being used by another RFC user ?

  The SAP error message 0D645 indicates that a document (identified by &1 &2) is currently being used by another RFC (Remote Function Call) user. This typically occurs in scenarios where multiple users or processes are trying to access or modify the same document simultaneously, leading to a conflict.
  Cause:
  
  Concurrent Access: The document is locked by another user or process that is currently working on it.
  Long-Running Transactions: If a transaction takes a long time to complete, it may hold a lock on the document for an extended period.
  System Configuration: Certain configurations in the SAP system may lead to more frequent locking of documents.
  
  Solution:
  
  Wait and Retry: If the document is being used by another user, the simplest solution is to wait for that user to finish their transaction and then try again.
  Identify the Lock: Use transaction code SM12 to check for locks on the document. You can see which user is holding the lock and the details of the lock.
  Release the Lock: If you have the necessary authorizations, you can manually release the lock from transaction SM12. However, this should be done with caution, as it may disrupt the other user's work.
  Check for Long-Running Transactions: If you notice that certain transactions are taking too long, investigate and optimize them to reduce the time locks are held.
  Review System Configuration: If this issue occurs frequently, consider reviewing the system configuration and locking mechanisms to ensure they are set up optimally.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage locks.
  SM21: To check system logs for any related errors or warnings.
  ST22: To check for dumps that might provide more context on the issue.
  
  
  Documentation: Refer to SAP Help documentation for more details on locking mechanisms and RFC user management.
  User Communication: If you are in a collaborative environment, communicate with other users to coordinate access to shared documents.
  
  If the problem persists or if you are unsure about releasing locks, it may be advisable to consult with your SAP Basis team or system administrator for further assistance.