How To Fix CN817 - Standard network & is locked by user &

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 817

• Message text: Standard network & is locked by user &

What causes this issue?

Standard network &V1& is currently locked by user &V2&:
The user is directly processing the standard network.
<ZH>or</>
The user is processing a different standard network which has a
relationship to standard network &V1&.

System Response

INCLUDE 'NA_ALLG_NOVERARBEITUNG' OBJECT DOKU ID TX

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN817 - Standard network & is locked by user & ?

  The SAP error message CN817 indicates that a standard network is locked by a user. This typically occurs in the context of project management or network planning within SAP, particularly in modules like SAP PS (Project System) or SAP PM (Plant Maintenance).
  Cause:
  The error CN817 usually arises due to one of the following reasons:
  
  User Lock: A user has locked the network for editing, which prevents other users from making changes to it.
  Transaction in Progress: A transaction involving the network is currently being processed by another user, leading to a temporary lock.
  System Lock: The network might be locked due to a system-level issue or a previous transaction that did not complete properly.
  
  Solution:
  To resolve the CN817 error, you can take the following steps:
  
  
  Identify the Locking User:
  
  Use transaction code SM12 to check for locks in the system. You can filter by the user ID to see if the network is locked by a specific user.
  If you find the locking user, you can contact them to see if they can release the lock.
  
  
  
  Release the Lock:
  
  If the locking user is not available or if the lock is no longer needed, you can manually delete the lock entry in transaction SM12. However, be cautious when doing this, as it may lead to data inconsistencies if the user is still working on the network.
  
  
  
  Check for Background Jobs:
  
  Sometimes, background jobs may hold locks. Check transaction SM37 to see if there are any jobs running that might be affecting the network.
  
  
  
  Wait and Retry:
  
  If the lock is temporary (e.g., due to a user currently working on the network), you may need to wait until the user completes their work and releases the lock.
  
  
  
  Consult with Basis Team:
  
  If you are unable to resolve the issue, it may be necessary to involve your SAP Basis team. They can provide insights into system-level locks or issues that may not be visible to end-users.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: Display and manage lock entries.
  SM37: Monitor background jobs.
  CN22: Change network.
  CN41: Display network.
  
  
  
  Documentation: Refer to SAP Help documentation for more details on network management and locking mechanisms.
  
  
  User Training: Ensure that users are trained on proper procedures for locking and unlocking networks to minimize the occurrence of such errors in the future.
  
  
  By following these steps, you should be able to resolve the CN817 error and continue working with the standard network in SAP.