You should use a Vickrey auction when:
The winner will be the highest bidder, and they will pay the second highest bid.
An example of when to use a Vickrey auction is if you want to sell a used stroller at the highest possible price.
During the auction, you can create ballots and distribute them as you please. Each ballot can be submitted with a bid or declined. You will be able to see when each decision is made, but not the content of each decision.
When the auction resolves, you will be able to see the label of the winning ballot and the transaction price. The winning ballot will also be able to see that information.
No other information will be revealed to you.
If the lowest bidder should win and receive the second lowest bid as payment, consider a reverse Vickrey auction.