How To Fix UR479 - Run &1 is active - the undo function cannot be used

UR479 - Overview

• Message type: E = Error

• Message class: UR -

• Message number: 479

• Message text: Run &1 is active - the undo function cannot be used

Self-Explanatory Message

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UR479 - Details

• The SAP error message UR479 indicates that a specific run (identified by &1) is currently active, and therefore, the undo function cannot be executed. This error typically occurs in the context of batch processing or job scheduling within SAP, where a particular job or run is still in progress, preventing any undo operations.
  
  Cause:
  
  Active Job: The primary cause of this error is that the job or run you are trying to undo is still active. This means that the system is currently processing the data associated with that run.
  Concurrency Issues: If multiple users or processes are trying to access or modify the same data simultaneously, it can lead to this error.
  System Locking: SAP uses locking mechanisms to ensure data integrity. If a run is locked for processing, you cannot perform an undo operation until it is completed.
  
  
  Solution:
  
  Wait for Completion: The simplest solution is to wait until the active run completes. Once