Hi Kate,
You are correct that volume discounts are not available for quantity items. It's not as clean but you might be able to use a percentage discount of 33% with a 3 item threshold to emulate the discount. Alternatively, you could create a second optional item that's "Buy 2 Get 1 Free", where people technically by this one item that's actually 3 of your item with one free. Not as clean but might do the trick!
Cheers,
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Béline FALZON
Conference Program Specialist II
California Teachers Association
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