How To Fix PEP090 - There are entries in the task list that do not have a relative start time

SAP Error Message - Details

• Message type: E = Error

• Message class: PEP - Schedule Manager: Messages

• Message number: 090

• Message text: There are entries in the task list that do not have a relative start time

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message PEP090 - There are entries in the task list that do not have a relative start time ?

  The SAP error message PEP090 indicates that there are entries in a task list that do not have a relative start time defined. This can occur in the context of project management or production planning within SAP, particularly when using the Project System (PS) or Production Planning (PP) modules.
  Cause:
  The error typically arises due to one of the following reasons:
  
  Missing Relative Start Time: Some tasks in the task list are defined without a relative start time, which is necessary for scheduling and sequencing tasks.
  Incorrect Task List Configuration: The task list may not have been set up correctly, leading to missing or incorrect data entries.
  Data Migration Issues: If data has been migrated from another system or from older versions of SAP, some entries may not have been properly converted or may lack necessary attributes.
  
  Solution:
  To resolve the PEP090 error, you can take the following steps:
  
  
  Check Task List Entries:
  
  Go to the task list in question and review each entry to ensure that all tasks have a defined relative start time.
  You can do this by navigating to the relevant transaction (e.g., CJ20N for project management) and checking the details of each task.
  
  
  
  Update Missing Information:
  
  If you find tasks without a relative start time, update these entries to include the necessary information. This can usually be done in the task details screen.
  
  
  
  Review Task Dependencies:
  
  Ensure that the dependencies between tasks are correctly defined. Sometimes, the absence of a relative start time can be due to missing predecessor or successor relationships.
  
  
  
  Use Transaction Codes:
  
  You can use transaction codes like CJ20N (Project Builder) or C223 (Change Task List) to make the necessary adjustments.
  
  
  
  Check for Customizations:
  
  If your organization has custom developments or enhancements, ensure that these do not interfere with the task list configuration.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidance on task list configuration and management.
  
  
  
  Testing:
  
  After making the necessary changes, test the task list to ensure that the error no longer appears and that the scheduling works as expected.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  Training and Documentation: Consider reviewing training materials or documentation related to project management and task list configuration in SAP.
  
  By following these steps, you should be able to resolve the PEP090 error and ensure that your task lists are correctly configured for project or production planning.