How To Fix CN045 - No possible entries for network number

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 045

• Message text: No possible entries for network number

What causes this issue?

You want to copy a network. Since external number assignment has been
activated for networks in Customizing, you could have the network
number be derived fromt the WBS element number in the network header.
However, you have not entered a WBS element in the network header and
therefore the system cannot propose a new network number.

System Response

The system does not display a proposal for the network number.

How to fix this error?

Enter your own network number.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN045 - No possible entries for network number ?

  The SAP error message CN045: No possible entries for network number typically occurs in the context of project management and network planning within the SAP system, particularly when working with networks in Project System (PS) or related modules. This error indicates that the system cannot find any valid entries for the specified network number.
  Causes:
  
  Invalid Network Number: The network number you are trying to access may not exist or may have been deleted.
  Authorization Issues: The user may not have the necessary authorizations to view or access the network.
  Data Inconsistency: There may be inconsistencies in the database or issues with the data integrity that prevent the network from being displayed.
  Network Status: The network might be in a status that does not allow it to be accessed (e.g., it might be locked or archived).
  Selection Criteria: The selection criteria used to search for the network may be too restrictive or incorrect.
  
  Solutions:
  
  Verify Network Number: Double-check the network number you are entering to ensure it is correct and exists in the system.
  Check Authorizations: Ensure that the user has the necessary authorizations to access the network. This can be done by checking the user roles and permissions in the SAP system.
  Review Network Status: Check the status of the network to ensure it is active and not locked or archived. You can do this by navigating to the network in the Project System and reviewing its details.
  Use Different Selection Criteria: If you are using specific selection criteria, try broadening them to see if the network appears.
  Database Consistency Check: If you suspect data inconsistency, you may need to run a consistency check or consult with your SAP Basis team to investigate any underlying database issues.
  Consult Documentation: Refer to SAP documentation or help resources for additional troubleshooting steps specific to your version of SAP.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like CN21 (Create Network), CN22 (Change Network), or CN03 (Display Network) to manage networks.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP Notes can provide specific guidance or fixes for known problems.
  Support: If the issue persists, consider reaching out to your SAP support team or consulting with SAP support for further assistance.
  
  By following these steps, you should be able to identify the cause of the CN045 error and implement a suitable solution.