How To Fix CJ126 - Activity element cannot be moved to the new network

SAP Error Message - Details

• Message type: E = Error

• Message class: CJ - Project master data and structure

• Message number: 126

• Message text: Activity element cannot be moved to the new network

What causes this issue?

The <ls>Adapt network assignment when moving activities</> indicator
only affects activities; they are moved to another network if the
assignment is changed to another WBS element, the activity elements are
not moved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CJ126 - Activity element cannot be moved to the new network ?

  The SAP error message CJ126 ("Activity element cannot be moved to the new network") typically occurs in the context of project management within SAP, particularly when dealing with project structures and networks in the Project System (PS) module. This error indicates that there is an issue with moving an activity element (such as a task or work package) from one network to another.
  Causes of Error CJ126
  
  
  Network Structure Issues: The activity you are trying to move may have dependencies or relationships that are not compatible with the target network.
  
  
  Status of the Activity: The activity might be in a status that does not allow it to be moved (e.g., it could be released or already in progress).
  
  
  Assignment Issues: The activity may be assigned to a different project or network that does not align with the new network's structure.
  
  
  Missing or Inconsistent Data: There may be missing or inconsistent data in the activity or network that prevents the move.
  
  
  Authorization Issues: The user may not have the necessary authorizations to perform the move.
  
  
  Solutions to Error CJ126
  
  
  Check Dependencies: Review the dependencies and relationships of the activity. Ensure that they are compatible with the target network.
  
  
  Change Activity Status: If the activity is in a status that prevents moving, consider changing its status to allow the move (e.g., set it to "Not Released").
  
  
  Verify Assignments: Ensure that the activity is correctly assigned to the project and network you are trying to move it to.
  
  
  Data Consistency: Check for any missing or inconsistent data in the activity or network. Make sure all required fields are filled out correctly.
  
  
  User Authorizations: Verify that you have the necessary authorizations to perform the move. If not, contact your SAP administrator.
  
  
  Use Transaction CJ20N: If you are using the Project Builder (transaction CJ20N), ensure that you are following the correct steps to move the activity.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines related to moving activities within networks.
  
  
  Related Information
  
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CJ20N (Project Builder), CJ02 (Change Project), and CJ03 (Display Project) for managing project structures.
  
  
  SAP Notes: Check for any SAP Notes related to this error message, as they may provide additional insights or patches that address the issue.
  
  
  SAP Community: Engage with the SAP Community forums for discussions and solutions shared by other users who may have encountered the same error.
  
  
  Training and Documentation: Consider reviewing SAP training materials or documentation related to Project System (PS) for a deeper understanding of project structures and network management.
  
  
  By following these steps, you should be able to identify the cause of the CJ126 error and implement a suitable solution.