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

CJ126 - Overview

• 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.

CJ126 - Details

• 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