How To Fix PSISSO026 - Error in a scheduling module

PSISSO026 - Overview

• Message type: E = Error

• Message class: PSISSO - PS Logistic Information System: Individual Overviews

• Message number: 026

• Message text: Error in a scheduling module

What causes this issue?

An error occured when determining fields for duration or work.

System Response

The system continues to process the information.

How to fix this error?

Contact your system administrator.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

PSISSO026 - Details

• The SAP error message PSISSO026 typically indicates that there is an issue with the scheduling module in the Project System (PS) component of SAP. This error can arise due to various reasons, such as incorrect settings, missing data, or inconsistencies in the project structure.
  
  Cause:
  
  Missing or Incorrect Data: The scheduling module may be unable to find necessary data, such as dates, durations, or dependencies between tasks.
  Inconsistent Project Structure: If the project structure is not properly defined or if there are inconsistencies in the relationships between activities, this error can occur.
  
  Configuration Issues: Incorrect configuration settings in the project system or scheduling parameters can lead to this error.
  Locked Objects: Sometimes, if the project or certain objects are locked by another user or process, it can prevent the scheduling module from functioning correctly.
  
  
  Solution:
  
  Check Project Data: Review the project data for any missing or incorrect entries. Ensure that all activities have valid start and finish