How To Fix CJ510 - Network & locked. You cannot shift dates

SAP Error Message - Details

• Message type: E = Error

• Message class: CJ - Project master data and structure

• Message number: 510

• Message text: Network & locked. You cannot shift dates

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CJ510 - Network & locked. You cannot shift dates ?

  The SAP error message CJ510 ("Network & locked. You cannot shift dates") typically occurs in the context of project management within SAP, particularly when dealing with project networks and scheduling. This error indicates that the network you are trying to modify is currently locked, preventing any changes to its dates.
  Causes:
  
  
  Network Locking: The network is locked due to ongoing processes, such as:
  
  A user is currently editing the network.
  The network is being processed by a background job.
  The network is locked due to a transaction that has not been completed.
  
  
  
  Authorization Issues: The user may not have the necessary authorizations to modify the network.
  
  
  Dependencies: There may be dependencies or constraints that prevent the shifting of dates.
  
  
  Solutions:
  
  
  Check for Locks:
  
  Use transaction code SM12 to check for any locks on the network. If you find locks that are no longer needed, you can delete them (if you have the necessary authorizations).
  
  
  
  Wait for Processes to Complete:
  
  If the network is locked due to a background job or another user, you may need to wait until those processes are completed.
  
  
  
  Check Authorizations:
  
  Ensure that you have the necessary authorizations to modify the network. You may need to contact your SAP security team if you suspect authorization issues.
  
  
  
  Review Dependencies:
  
  Check if there are any dependencies or constraints that are preventing the date shift. You may need to resolve these before attempting to shift dates again.
  
  
  
  Use Transaction CJ20N:
  
  If you are using transaction CJ20N (Project Builder), ensure that you are not in a mode that locks the network. Try switching to a different mode or refreshing the project.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or consult with your SAP support team for any specific configurations or settings that may be causing the issue.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CJ01 (Create Work Breakdown Structure), CJ02 (Change Work Breakdown Structure), CJ20N (Project Builder), and SM12 (Display and Delete Locks).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Training: Ensure that users are trained on how to properly manage project networks and understand the implications of locking.
  
  If the issue persists after trying the above solutions, it may be beneficial to escalate the matter to your SAP support team for further investigation.