How To Fix /PM0/ABB_MESSAGES135 - You cannot change the duration and end date at the same time

SAP Error Message - Details

• Message type: E = Error

• Message class: /PM0/ABB_MESSAGES -

• Message number: 135

• Message text: You cannot change the duration and end date at the same time

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PM0/ABB_MESSAGES135 - You cannot change the duration and end date at the same time ?

  The SAP error message /PM0/ABB_MESSAGES135 indicates that you are trying to change both the duration and the end date of a project or task simultaneously, which is not allowed in the system. This restriction is in place to maintain data integrity and avoid conflicts in scheduling.
  Cause:
  
  Simultaneous Changes: The error occurs when a user attempts to modify both the duration and the end date of a project or task at the same time. The system requires that only one of these parameters be changed to ensure that the scheduling logic remains consistent.
  System Configuration: The configuration settings in the project management module may enforce this rule to prevent potential conflicts in project timelines.
  
  Solution:
  To resolve this error, you should follow these steps:
  
  
  Decide on the Change: Determine whether you want to change the duration or the end date, but not both at the same time.
  
  
  Change One Parameter:
  
  If you want to change the duration, adjust the duration field and leave the end date unchanged.
  If you want to change the end date, adjust the end date field and leave the duration unchanged.
  
  
  
  Save Changes: After making the desired change, save the record. If you need to make the other change later, you can do so after saving the first change.
  
  
  Check Dependencies: Ensure that any changes you make do not violate dependencies or constraints set within the project.
  
  
  Related Information:
  
  Project Management Module: This error is typically encountered in the context of SAP Project Management (PM) or SAP Controlling (CO) modules.
  Documentation: Refer to SAP documentation or help files for more detailed information on project scheduling and the implications of changing duration and end dates.
  User Training: Ensure that users are trained on the proper procedures for modifying project parameters to avoid this error in the future.
  
  If you continue to experience issues or if the error persists despite following the above steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in project management within SAP.