How To Fix PPEBAL408 - The start and end position of activity &1 are the same

SAP Error Message - Details

• Message type: E = Error

• Message class: PPEBAL - Line Balance Message

• Message number: 408

• Message text: The start and end position of activity &1 are the same

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message PPEBAL408 - The start and end position of activity &1 are the same ?

  The SAP error message PPEBAL408 indicates that there is an issue with the scheduling of an activity in the Project System (PS) or Production Planning (PP) module. Specifically, the error states that the start and end positions (or times) of the activity are the same, which is not valid for scheduling.
  Cause:
  The primary cause of this error is that an activity has been defined with the same start and end date/time. This can happen due to:
  
  Incorrect data entry when creating or modifying the activity.
  A system error or bug that causes the dates to be set incorrectly.
  A misunderstanding of how to define activities in terms of duration.
  
  Solution:
  To resolve the PPEBAL408 error, you can take the following steps:
  
  
  Check Activity Dates:
  
  Go to the activity in question and check the start and end dates/times.
  Ensure that the end date/time is after the start date/time.
  
  
  
  Modify Activity Duration:
  
  If the activity is meant to have a duration, adjust the end date/time to reflect a valid duration.
  For example, if the start time is set to 10:00 AM, the end time should be set to a later time, such as 11:00 AM or later.
  
  
  
  Review Dependencies:
  
  Check if there are any dependencies or constraints that might be affecting the scheduling of the activity.
  Ensure that any predecessor or successor activities are correctly defined.
  
  
  
  Recreate the Activity:
  
  If the issue persists, consider deleting the activity and recreating it with the correct start and end times.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources for any specific guidelines related to activity scheduling in your version of SAP.
  
  
  
  Contact Support:
  
  If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like CJ20N (Project Builder) or CJI3 (Project Actual Line Items) to view and manage project activities.
  SAP Notes: Check for any relevant SAP Notes that might address known issues or bugs related to this error message.
  User Roles: Ensure that you have the necessary permissions to modify project activities, as restrictions may lead to errors during updates.
  
  By following these steps, you should be able to identify and correct the issue causing the PPEBAL408 error in SAP.