How To Fix CN288 - Network type &1 plant &2: No checking rule maintained for activity

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 288

• Message text: Network type &1 plant &2: No checking rule maintained for activity

What causes this issue?

A checking rule must be maintained in order to carry out a material
availability check. However, no checking rule has been maintained for
the network type &V1&, plant &V2& and the entered business transaction
(for example "created" or "released").

System Response

INCLUDE 'NA_ALLG_NOFUNKTION' OBJECT DOKU ID TX

How to fix this error?

INCLUDE 'NA_ALLG_VORGEHEN' OBJECT DOKU ID TX
Maintain in Customizing for the Project System:
a checking group for the network type,
the plant and
the business transaction.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN288 - Network type &1 plant &2: No checking rule maintained for activity ?

  The SAP error message CN288 indicates that there is no checking rule maintained for a specific network type in a particular plant. This error typically arises in the context of project systems (PS) or network planning within SAP, where certain configurations are required to validate activities in a network.
  Cause:
  
  Missing Checking Rule: The primary cause of this error is that the system does not have a defined checking rule for the specified network type and plant combination. Checking rules are used to validate various aspects of network activities, such as costs, durations, and resource allocations.
  Configuration Issues: The error may also stem from incorrect or incomplete configuration settings in the project system or network planning module.
  Network Type Not Supported: The network type being used may not be supported in the current configuration, leading to the absence of a checking rule.
  
  Solution:
  To resolve the CN288 error, you can follow these steps:
  
  
  Define Checking Rules:
  
  Go to the configuration settings in SAP.
  Navigate to the path: SPRO > Project System > Structures > Networks > Define Checking Rules.
  Here, you can create or modify checking rules for the relevant network type and plant. Ensure that the rules are correctly defined to meet your business requirements.
  
  
  
  Check Network Type and Plant Configuration:
  
  Verify that the network type you are using is correctly configured in the system.
  Ensure that the plant specified in the error message is correctly set up to work with the network type.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help files related to project systems and network planning for additional guidance on setting up checking rules.
  
  
  
  Testing:
  
  After making the necessary changes, test the network activities again to ensure that the error is resolved.
  
  
  
  Consult with SAP Support:
  
  If you are unable to resolve the issue through configuration changes, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes such as CN22 (Change Network) or CN01 (Create Network) to work with networks in SAP.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional insights into configuration best practices.
  User Roles: Ensure that you have the necessary authorizations to make changes to the configuration settings in SAP.
  
  By following these steps, you should be able to resolve the CN288 error and ensure that your network activities are validated correctly within SAP.