How To Fix CN228 - The network has already been released (please check)

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 228

• Message text: The network has already been released (please check)

What causes this issue?

You want to set the reservation/purchase requisition indicator to
<ls>Not relevant to materials planning until release</>.

System Response

Since the network has already been released, has this characteristic
value no relevance an dconsequntly is not permissible.

How to fix this error?

Use one of the other two values.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN228 - The network has already been released (please check) ?

  The SAP error message CN228, which states "The network has already been released (please check)," typically occurs in the context of project management and network planning within the SAP system, particularly in the Project System (PS) module. This error indicates that an attempt is being made to perform an operation on a network that has already been released, meaning that it is no longer in a state where changes can be made.
  Causes:
  
  Network Status: The network has been released, which means it is locked for changes. This can happen if the project has been finalized or if the network has been set to a status that prevents further modifications.
  User Permissions: The user may not have the necessary permissions to make changes to the released network.
  System Configuration: There may be specific configurations or settings in the project management module that restrict changes to released networks.
  
  Solutions:
  
  Check Network Status: Verify the status of the network in question. You can do this by navigating to the network in the SAP system and checking its current status. If it is released, you may need to change it back to a status that allows modifications (if applicable).
  Releasing the Network: If you need to make changes, you may need to reverse the release of the network. This typically involves changing the status back to "created" or "in process," depending on your organization's procedures.
  User Authorization: Ensure that you have the necessary authorizations to make changes to the network. If not, contact your SAP administrator to request the appropriate permissions.
  Consult Documentation: Review the project management documentation or guidelines within your organization to understand the proper procedures for handling released networks.
  Contact Support: If the issue persists and you are unable to resolve it, consider reaching out to your SAP support team or consulting SAP notes for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CN21 (Create Network), CN22 (Change Network), and CN23 (Display Network) to manage networks effectively.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions to common problems.
  Training: Consider training sessions or workshops on SAP Project System to better understand network management and the implications of network statuses.
  
  By following these steps, you should be able to address the CN228 error and manage your project networks more effectively.