How To Fix COCM459 - Error when creating network to separate => No separation

SAP Error Message - Details

• Message type: E = Error

• Message class: COCM - Order Change Management

• Message number: 459

• Message text: Error when creating network to separate => No separation

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.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message COCM459 - Error when creating network to separate => No separation ?

  The SAP error message COCM459 typically occurs in the context of project management and network planning within the SAP system, particularly when dealing with the creation of networks in the Project System (PS) module. The error message "No separation" indicates that the system is unable to create a network due to issues related to the separation of activities or components.
  Cause:
  
  
  Incorrect Activity Relationships: The activities you are trying to link in the network may not have the correct relationships defined. For example, if the activities are not properly sequenced or if there are circular dependencies, the system may not be able to create the network.
  
  
  Missing or Incorrect Parameters: Required parameters for the network creation might be missing or incorrectly defined. This can include missing work breakdown structure (WBS) elements, incorrect activity types, or other project-related data.
  
  
  Project Structure Issues: The project structure may not allow for the separation of activities as required. This could be due to the way the project is set up or how the activities are defined.
  
  
  System Configuration: There may be configuration settings in the SAP system that prevent the creation of networks under certain conditions.
  
  
  Solution:
  
  
  Check Activity Relationships: Review the relationships between the activities you are trying to link. Ensure that they are correctly defined and that there are no circular dependencies.
  
  
  Verify Parameters: Ensure that all required parameters for the network creation are filled out correctly. Check the WBS elements, activity types, and any other relevant data.
  
  
  Review Project Structure: Look at the overall project structure to ensure that it allows for the separation of activities. You may need to adjust the project setup or redefine certain activities.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on the error message and the context in which it occurs.
  
  
  Check Configuration Settings: If you have access to system configuration, review the settings related to project management and network creation to ensure they are set up correctly.
  
  
  Contact SAP Support: If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. They may provide insights specific to your system configuration or version.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CJ20N (Project Builder), CN21 (Create Network), and others that may help in managing projects and networks.
  SAP Notes: Search for SAP Notes related to error COCM459 in the SAP Support Portal, as there may be specific patches or updates that address this issue.
  User Forums: Engage with SAP user communities or forums where similar issues may have been discussed, providing insights or solutions from other users' experiences.
  
  By following these steps, you should be able to diagnose and resolve the COCM459 error when creating a network in SAP.