How To Fix PSB_API_MSGCL031 - Changed milestone data not available

SAP Error Message - Details

• Message type: E = Error

• Message class: PSB_API_MSGCL -

• Message number: 031

• Message text: Changed milestone data not available

What causes this issue?

The milestone has been deleted, possibly by another user in the shared
mode.

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

<ZH>Note</>
The shared mode is available if you have deactivated the default
Business Add-In (BAdI) implementation <NP>BADI_IMPL_PS_SHARED_MODE</>.
For more information, see Customizing for <LS>Project System</> under
<LS>Handling Large Projects</> -> <LS>Business Add-Ins</> -> <LS>Make
Settings for Project Editor</>.

System Response

This message is displayed when you try to save milestone data that has
been simultaneously edited by another user in the shared mode. In this
case, this user has deleted the milestone in the shared mode.
The system displays a message that the changed milestone data is not
found.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PSB_API_MSGCL031 - Changed milestone data not available ?

  The SAP error message PSB_API_MSGCL031 ("Changed milestone data not available") typically occurs in the context of project management within SAP, particularly when dealing with project milestones in the Project System (PS) module. This error indicates that the system is unable to find the updated or changed milestone data that is expected during a certain operation, such as saving or processing project data.
  Causes:
  
  Data Inconsistency: The milestone data may have been changed or deleted in the database, leading to inconsistencies.
  Buffer Issues: The data might not be properly buffered or updated in the system, causing the application to reference outdated information.
  Authorization Issues: The user may not have the necessary authorizations to view or modify the milestone data.
  Technical Issues: There could be underlying technical issues, such as problems with the database or application server.
  
  Solutions:
  
  
  Check Data Consistency:
  
  Verify that the milestone data exists in the system. You can do this by navigating to the relevant project and checking the milestone details.
  If the data has been deleted or is missing, you may need to recreate the milestone.
  
  
  
  Refresh Buffer:
  
  Try refreshing the buffer by logging out and logging back into the SAP system. This can help in cases where the data is not being updated correctly in the user session.
  
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary authorizations to access and modify milestone data. You may need to consult with your SAP security team to verify this.
  
  
  
  Review Change Logs:
  
  Check the change logs for the project to see if there were any recent changes made to the milestone data that could have led to this error.
  
  
  
  Debugging:
  
  If you have access to technical resources, consider debugging the program or transaction that is generating the error to identify the root cause.
  
  
  
  Consult SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message. There may be patches or updates available that resolve known issues.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot find a resolution, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including the transaction code and any relevant logs.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in the Project System module, such as CJ20N (Project Builder) or CJ02 (Change Project).
  Documentation: Review SAP documentation related to project milestones and the Project System for best practices and troubleshooting steps.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to diagnose and resolve the PSB_API_MSGCL031 error effectively.