Are groups bidding on the same item from different sellers

[Donald]

what is a group? Is it bidding on the same items from different sellers? If so do my other buds cancel automatically. if I win one ? Thanks just trying to understand grouping.

[Cupid]

I recommend reading the FAQ page.

Yes, it sounds like you already understand what a normal/standard Group is for.

There are also specialist Groups for other purposes, but these need to be enabled on the Settings page before you can use them.
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Mark