How To Fix DMU113 - Node &1 is already in proccessing by &2

SAP Error Message - Details

• Message type: E = Error

• Message class: DMU - Digital Mock Up (DMU)

• Message number: 113

• Message text: Node &1 is already in proccessing by &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMU113 - Node &1 is already in proccessing by &2 ?

  The SAP error message DMU113, which states "Node &1 is already in processing by &2," typically occurs in the context of data migration or data management processes, particularly when using the Data Migration Workbench (DMW) or similar tools. This error indicates that a specific node (or object) is currently being processed by another user or session, which prevents the current operation from proceeding.
  Cause:
  
  Concurrent Processing: The most common cause of this error is that the node (object) you are trying to process is already being handled by another user or session. This can happen in environments where multiple users are working on the same data set simultaneously.
  Locking Mechanism: SAP uses a locking mechanism to prevent data inconsistencies. If a node is locked by another process, you will receive this error when trying to access it.
  Long-Running Processes: If a previous operation on the same node is taking longer than expected, it may still be in a processing state when you attempt to access it.
  
  Solution:
  
  Wait and Retry: If the node is being processed by another user, the simplest solution is to wait until that process is completed. You can then retry your operation.
  Check Active Sessions: Use transaction codes like SM12 (to check for locks) or SM21 (to view system logs) to identify if another session is holding a lock on the node. If you find a session that is no longer active, you may need to contact your system administrator to release the lock.
  Communicate with Team Members: If you are in a collaborative environment, communicate with your team to ensure that no one else is working on the same node at the same time.
  Review Process Logic: If this error occurs frequently, review the logic of your data processing to ensure that nodes are not being accessed concurrently inappropriately.
  System Administration: If you have the necessary permissions, you can manually unlock the node using transaction SM12, but this should be done with caution and typically only by a system administrator.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (to view and manage locks), SM21 (to check system logs), and ST22 (to check 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.
  Documentation: Review the official SAP documentation for the Data Migration Workbench or the specific module you are working with to understand the expected behavior and best practices.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance.