adwordsjedi - 3:41 pm on Jul 25, 2013 (gmt 0)
Well I used to only run desktop, now forced to run tablets... I tried conversion optimizer back on desktop only and it did terrible. This is a campaign with 75-100 conversions/day.
Tablet CPA is absolutely out of control and I am forced to lower all bids to compensate. How this is even legal to force you to advertise on something you don't want to is beyond me. At least on mobile I can do -100%.