I have all of my ads in channels, but when I add up the page impressions of all my channels it doesn't match the Aggregate data. For example yesterday I had: Aggregate data = 6,583 page impressions Group by: Date all channels = 6,606 page impressions What is going on? The clicks don't add up either. Makes it very hard to figure out what is working when I change things.
I think report this issue to them only. They only can solve your problem because it is their mistake only.
it happens when you have 1 ad channel added on 2 times in a page! google shows total pageviews then that are of 1 ad channel
On a side note, I'm a few hours away from hitting my 1,000,000th impression. Took me a couple of months to hit that. My short term goal is to hit 1,000,000 impressions per moth.