How To Fix CN608 - Network contains no relationships

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 608

• Message text: Network contains no relationships

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CN608 - Network contains no relationships ?

  The SAP error message CN608: Network contains no relationships typically occurs in the context of project management or network planning within the SAP system, particularly when working with networks in the Project System (PS) module. This error indicates that the network you are trying to work with does not have any relationships defined between its activities.
  Causes:
  
  No Relationships Defined: The most common cause is that the network activities do not have any relationships (dependencies) defined between them. Relationships are essential for determining the sequence of activities.
  Incorrect Network Structure: The network might not be structured correctly, leading to a lack of relationships.
  Data Entry Errors: There may have been an oversight during the creation of the network or its activities, leading to missing relationships.
  Network Deletion: If relationships were deleted or if the network was modified incorrectly, it could lead to this error.
  
  Solutions:
  
  
  Define Relationships: 
  
  Go to the network in question and check the activities. 
  Use the transaction code CN22 (Change Network) or CN01 (Create Network) to add relationships between the activities.
  Ensure that you define the appropriate type of relationships (e.g., Finish-to-Start, Start-to-Start, etc.) based on your project requirements.
  
  
  
  Check Network Structure:
  
  Review the overall structure of the network to ensure that all activities are correctly linked.
  Make sure that all necessary activities are included in the network.
  
  
  
  Review Activity Details:
  
  Check the details of each activity to ensure they are correctly set up and that there are no missing or incorrect entries.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for guidance on how to properly set up networks and relationships.
  
  
  
  Use Transaction Codes:
  
  Use transaction codes like CN03 (Display Network) to view the network and its activities to identify any missing relationships.
  
  
  
  Related Information:
  
  Network Types: Understand the different types of networks in SAP (e.g., standard networks, hierarchical networks) and how they function.
  Relationship Types: Familiarize yourself with the various types of relationships that can be established between activities (e.g., FS, SS, FF, SF).
  SAP Notes: Check for any relevant SAP Notes that might address specific issues or bugs related to this error message.
  Training and Documentation: Consider training sessions or documentation on SAP Project System to better understand network planning and management.
  
  By addressing the relationships in your network, you should be able to resolve the CN608 error and proceed with your project planning activities.