How To Fix PSB_API_MSGCL999 - Operation not supported for locked objects

SAP Error Message - Details

• Message type: E = Error

• Message class: PSB_API_MSGCL -

• Message number: 999

• Message text: Operation not supported for locked objects

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message PSB_API_MSGCL999 - Operation not supported for locked objects ?

  The SAP error message "PSB_API_MSGCL999 Operation not supported for locked objects" typically occurs when there is an attempt to perform an operation on an object that is currently locked. This can happen in various scenarios, such as when trying to modify or delete a project, task, or other objects in the Project System (PS) module while they are locked by another user or process.
  Cause:
  
  Object Locking: The object you are trying to access is locked by another user or process. This is a common scenario in multi-user environments where one user is editing an object while another user tries to access it.
  Transaction in Progress: If a transaction is currently being processed, it may lock the object until the transaction is completed.
  Background Jobs: Sometimes, background jobs may lock objects while they are being processed.
  
  Solution:
  
  Check Lock Entries: Use transaction code SM12 to check for lock entries. You can see which user or process is holding the lock on the object. If you have the necessary permissions, you can unlock the object.
  Wait and Retry: If the lock is held by another user, you may need to wait until they finish their work and release the lock. You can communicate with the user to understand when they will be done.
  Review Background Jobs: If a background job is causing the lock, you may need to wait for it to complete or check with your system administrator to see if it can be stopped.
  Check for Long-Running Transactions: If a transaction is taking too long, it may be worth investigating why it is taking so long and if it can be optimized or terminated.
  Consult Documentation: Review SAP documentation or notes related to the specific operation you are trying to perform for any additional guidance or known issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (to view and manage lock entries), SM21 (to check system logs), and ST22 (to check dump analysis).
  User Permissions: Ensure that you have the necessary permissions to unlock objects or perform the operations you are attempting.
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message. You can search for the error message or related keywords in the SAP Support Portal.
  
  If the issue persists after trying the above solutions, it may be beneficial to contact your SAP support team for further assistance.