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Popunder CPM Question
I am currently running a popunder campaign on Juicyads. When I am setting up my campaign it has my CPM bid, I've ran lower cost bids 2.50 per 1000 impressions and I have ran higher bids 3.50 per 1000 impressions.MY question is at the end of the day I got 12,000 impressions for the 2.50 bid and 6,700 for the 3.50 bid, what is the purpose of higher bid when you get more impressions with lower cost? Is there something I am missing?
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