But yesterday I had a precipitious drop in one of my campaigns. I run a $200 daily budget and Google had run to within 1/10th of 1% of that rate on a cumulative basis through the 30th - $6002.57. I wouldn't have been surprised by a $195 day yesterday, but when I got $181, when Google tells me I could run $600 a day, I think something continues to be wrong in Googleland. I think they have some location that isn't reporting properly. I even saw a strange statistical anomaly on Youtube view counts yesterday as well.
Google can usually come within 1% of my daily budget, yet occasionally misses on other days by 25%. Then the day after they miss they run over to almost precisely the amount necessary to bring my average to within 1%. That's pretty darn good control if you ask me. So why did they not have that control the day before? After all, they tell me I could run my budget three times as high as I do in order to get all the traffic I could. The only explanation I can come up with is that they are having data reporting issues.
I'd like to say that I've confirmed that the clicks that they fail to report actually come through to my site, but I haven't delved into it that deeply on the Analytics side.
