Another Exchange Backup of a Higher Priority has Been Started or is Currently Running. This Backup has been Cancelled.



Another Exchange backup of a higher priority has been started or is currently running. This backup has been cancelled.


  • Windows-based Exchange backup tools provided for Exchange 2000 and 2003R2 Exchange databases on Microsoft Windows 2003 Servers. Note: Microsoft ended support for all versions of Exchange 2003 on 4/8/2014, and all versions of Exchange 2000 on 1/1/2011.
  • For VSS backups of Exchange 2007 and later, see the Microsoft Exchange Server protection chapter in the Unitrends Enterprise Backup 8.0 User manual or the “Exchange backup requirements and considerations” section of the 9.0 Administrators guide.


This message may occur if an Exchange Information Store differential backup is running when an Exchange Information Store Master backup is launched. The Exchange Information Store differential backup is canceled to allow the Exchange Information Store master backup to run. As these backups are initiated by the client itself, normal Tasker queuing operations may not apply.

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