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  Buffer Issues: The data might not be properly buffered or updated in the system, causing the application to reference outdated information.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