How To Fix CJ444 - Not all required networks read/locked. Date cannot be moved

SAP Error Message - Details

• Message type: E = Error

• Message class: CJ - Project master data and structure

• Message number: 444

• Message text: Not all required networks read/locked. Date cannot be moved

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CJ444 - Not all required networks read/locked. Date cannot be moved ?

  The SAP error message CJ444 ("Not all required networks read/locked. Date cannot be moved") typically occurs in the context of project management and network scheduling within SAP's Project System (PS) module. This error indicates that there are certain networks associated with a project that have not been properly read or locked, which prevents the system from moving dates for the project.
  Causes:
  
  Incomplete Network Read/Lock: The networks associated with the project may not have been fully read or locked. This can happen if there are multiple users accessing the same project or if there are background jobs that are still processing.
  Dependencies: There may be dependencies between networks that are not being respected, leading to conflicts when trying to move dates.
  Status Issues: The status of the networks may not allow for date changes. For example, if a network is in a "completed" status, it may not be eligible for date adjustments.
  Missing Authorizations: The user may not have the necessary authorizations to read or lock the networks.
  
  Solutions:
  
  Check Network Status: Ensure that all networks associated with the project are in a status that allows for date changes. You may need to change the status of certain networks to allow for modifications.
  Lock/Unlock Networks: Manually lock or unlock the networks involved. You can do this through transaction codes like CJ20N (Project Builder) or CN41 (Network Overview).
  Re-read Networks: Use the appropriate transaction to re-read the networks. This can sometimes resolve issues where the system has not properly registered the current state of the networks.
  Check for Background Jobs: Ensure that there are no background jobs that are currently processing the networks. If there are, wait for them to complete before attempting to move dates again.
  User Authorizations: Verify that the user has the necessary authorizations to perform the actions required. If not, contact your SAP security administrator to adjust the permissions.
  Consult SAP Notes: Check for any relevant SAP Notes that may address this specific error. SAP frequently updates its knowledge base with solutions for common issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CJ20N (Project Builder), CN41 (Network Overview), and CN22 (Change Network).
  SAP Documentation: Review SAP's official documentation for Project System to understand the implications of network statuses and dependencies.
  Support: If the issue persists, consider reaching out to SAP support or your internal SAP support team for further assistance.
  
  By following these steps, you should be able to diagnose and resolve the CJ444 error in SAP.