On the Auction Transaction List, find the transaction you wish to copy, click in the radio button on the left-hand side and then on the word Copy at the top.

The copy auction transaction is added to Auction Transaction List in the state In Progress, click on the green System Ref of the new transaction to go into it. Click on Update to be able to amend the details to exactly what you want for the new transaction – you will at least need to update the Auction End Date and Discount Date to the new date you require. Discount Date should be equal to or later than Auction End Date.  When everything is correct, click Update Auction at the bottom and continue to process the transaction as normal.