How To Fix CN804 - Relationship is already being processed

CN804 - Overview

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 804

• Message text: Relationship is already being processed

What causes this issue?

You cannot delete the relationship at this time because it is currently
being edited by another user.

System Response

INCLUDE 'ALLG_CN_VERARB_NICHT_FORTGEF' OBJECT DOKU ID TX

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

CN804 - Details

• The SAP error message CN804 ("Relationship is already being processed") typically occurs in the context of project management or network planning within SAP, particularly when dealing with relationships between activities in a project or network.
  
  Cause:
  This error usually arises when:
  
  Concurrency Issues: There are multiple processes or transactions trying to access or modify the same relationship simultaneously. This can happen in a multi-user environment where two users are trying to change the same relationship at the same time.
  Locking Mechanism: SAP uses a locking mechanism to prevent data inconsistencies. If a relationship is locked by one user or process, another user trying to access or modify it will encounter this error.
  Incomplete Processing: If a previous transaction involving the relationship was not completed properly, it may still be in a locked state.
  
  
  Solution:
  To resolve the CN804 error, you can try the following steps:
  
  
  Check for Locks:
  
  Use transaction code SM12 to check for any locks on the