How To Fix /ISDFPS/OM261 - Assignment cannot be shifted: start (&1) is after end (&2)

/ISDFPS/OM261 - Overview

• Message type: E = Error

• Message class: /ISDFPS/OM -

• Message number: 261

• Message text: Assignment cannot be shifted: start (&1) is after end (&2)

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /ISDFPS/OM261 - Assignment cannot be shifted: start (&1) is after end (&2) ?

  The SAP error message /ISDFPS/OM261 Assignment cannot be shifted: start (&1) is after end (&2) typically occurs in the context of project management or resource planning within SAP, particularly when dealing with assignments in the Project System (PS) or similar modules. This error indicates that there is an attempt to shift an assignment (like a task or resource allocation) in a way that the start date is set to a time that is after the end date, which is logically incorrect.
  
  Cause:
  
  Incorrect Date Configuration: The start date of the assignment is set later than the end date, which violates the logical sequence of time.
  Data Entry Error: Manual entry of dates may have led to an incorrect configuration.
  System Logic: The system may be trying to adjust dates based on dependencies or constraints that are not properly defined.
  
  
  Solution:
  
  Check Assignment Dates: Review the start and end dates of the assignment in question. Ensure that