How To Fix CN378 - Element &1 in network &2 has already been released. Cannot delete

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 378

• Message text: Element &1 in network &2 has already been released. Cannot delete

What causes this issue?

The following activity elements cannot be deleted immediately, you can
only set a deletion flag for them:
Released activity elements
Activity elements in a header-assigned network that you have already
saved.

System Response

INCLUDE 'NA_ALLG_NOVERARBEITUNG' OBJECT DOKU ID TX

How to fix this error?

To set a deletion flag for an activity, select the activity on the
network overview screen and choose <ls>Edit -> Status -> Deletion flag
</>.
For more information about deleting and archiving, see the SAP Library
under <LS>Cross Application Components -> Archiving Application Data</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN378 - Element &1 in network &2 has already been released. Cannot delete ?

  The SAP error message CN378 indicates that you are trying to delete a network element (such as an activity or a component) that has already been released. In SAP Project System (PS), once a network or its elements are released, they are considered to be in a state where they can no longer be modified or deleted without first reverting their status.
  Cause:
  The error occurs because:
  
  The network element (e.g., activity, component) has been released, meaning it is in a status that prevents deletion.
  The system enforces integrity rules to ensure that released elements are not inadvertently deleted, which could lead to inconsistencies in project planning and execution.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check the Status: Verify the status of the network element. You can do this by navigating to the network in the SAP GUI and checking the status in the header or the relevant tab.
  
  
  Revoke Release: If you need to delete the element, you must first revoke the release status. This can typically be done using the following steps:
  
  Go to the network in transaction code CN22 (Change Network).
  Select the network element you want to change.
  Use the option to "Set to Not Released" or "Revoke Release" (the exact terminology may vary based on your SAP version).
  Save your changes.
  
  
  
  Delete the Element: After revoking the release status, you should be able to delete the network element without encountering the CN378 error.
  
  
  Check Dependencies: Ensure that there are no dependencies or linked elements that might prevent deletion. If there are, you may need to address those first.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  CN22: Change Network
  CN21: Create Network
  CN03: Display Network
  
  
  User Authorizations: Ensure that you have the necessary authorizations to change the status of network elements and delete them.
  Documentation: Refer to SAP documentation or help files for more detailed information on network management and status handling in the Project System module.
  
  If you continue to face issues, consider consulting with your SAP support team or a functional consultant who specializes in SAP Project System for further assistance.