CJ155 - There are still WBS elements in the buffer

SAP Error Message - Details

• Message type: E = Error

• Message class: CJ - Project master data and structure

• Message number: 155

• Message text: There are still WBS elements in the buffer

What causes this issue?

You have copied or cut project objects which are still in the buffer

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Position the WBS elements on the proper location
<ZH>or</>
Undo your action.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CJ155 - There are still WBS elements in the buffer ?

  The SAP error message CJ155 ("There are still WBS elements in the buffer") typically occurs in the context of project management and controlling when you are trying to perform certain operations on Work Breakdown Structure (WBS) elements. This error indicates that there are still WBS elements that are being held in the buffer, which can prevent certain actions from being completed.
  Cause:
  
  Buffering Mechanism: SAP uses a buffering mechanism to improve performance. When WBS elements are being processed, they may be held in a buffer. If there are still elements in this buffer, it can lead to this error when you attempt to execute certain transactions.
  Open Transactions: There may be open transactions or processes that are still referencing the WBS elements, preventing the system from completing the action you are trying to perform.
  Inconsistent Data: Sometimes, inconsistencies in the data or incomplete updates can lead to this error.
  
  Solution:
  
  Check for Open Transactions: Ensure that there are no open transactions or processes that are using the WBS elements. You can check for any ongoing processes that might be locking the WBS elements.
  Refresh the Buffer: You can refresh the buffer by using transaction code SE14 (Database Utility) to clear the buffer for the relevant tables. This can help in resolving the issue.
  Use Transaction CJ20N: If you are working with project structures, try to open the project in transaction CJ20N and check if you can save or release the project structure, which may help in clearing the buffer.
  Check for Locks: Use transaction SM12 to check for any locks on the WBS elements. If there are locks, you may need to release them.
  Reboot the System: In some cases, a system reboot or a restart of the application server may help clear the buffer.
  Consult SAP Notes: Check for any relevant SAP Notes that may address this specific error. SAP frequently updates its knowledge base with solutions for known issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CJ20N (Project Builder), CJ01 (Create WBS), CJ02 (Change WBS), and CJ03 (Display WBS).
  SAP Support: If the issue persists, consider reaching out to SAP support for further assistance, especially if it is affecting critical business processes.
  Documentation: Review SAP documentation related to project management and controlling for more insights into WBS elements and their management.
  
  By following these steps, you should be able to resolve the CJ155 error and continue with your project management tasks in SAP.