How To Fix CN799 - Versions already exist for network &; deletion not possible

CN799 - Overview

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 799

• Message text: Versions already exist for network &; deletion not possible

What causes this issue?

Project versions exist for network &v1&. You cannot delete the network
itself as long a the project versions exist.

System Response

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

How to fix this error?

Delete the project versions first.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

CN799 - Details

• The SAP error message CN799 indicates that there are existing versions of a network in the system, which prevents the deletion of that network. This typically occurs in the context of project management or network planning within SAP, where multiple versions of a network can exist for various reasons, such as changes in project scope, updates, or revisions.
  
  Cause:
  
  Existing Versions: The primary cause of this error is that the network you are trying to delete has one or more versions already created. SAP allows for version management to track changes over time, and if versions exist, the system will not allow deletion to maintain data integrity.
  Dependencies: There may be dependencies or links to other objects (like activities, orders, or projects) that are preventing the deletion of the network.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to delete the network or its versions.
  
  
  Solution:
  
  Check Existing Versions: Use transaction codes like