How To Fix /ISDFPS/FDP442 - Operation/exercise '&' has already started and cannot be moved

SAP Error Message - Details

• Message type: E = Error

• Message class: /ISDFPS/FDP -

• Message number: 442

• Message text: Operation/exercise '&' has already started and cannot be moved

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /ISDFPS/FDP442 - Operation/exercise '&' has already started and cannot be moved ?

  The SAP error message /ISDFPS/FDP442 indicates that an operation or exercise in the context of SAP's Flexible Planning (often used in production planning and control) has already started and cannot be moved. This typically occurs when there is an attempt to change the scheduling or planning of an operation that is already in progress.
  
  Cause:
  
  Operation Already Started: The primary cause of this error is that the operation or exercise you are trying to move has already begun. In SAP, once an operation starts, it is locked for changes to prevent inconsistencies in planning and execution.
  Incorrect Planning Sequence: If the planning sequence is not followed correctly, it may lead to attempts to move operations that are already active.
  Data Integrity Constraints: SAP enforces data integrity rules that prevent changes to operations that could lead to conflicts or inconsistencies in the production process.
  
  
  Solution:
  
  Check Operation Status: Verify the status of the operation or exercise. If