I understand that unbillable impressions are common with link units, they happen when the second click doesn't happen.
What I don't understand is what the adsense dashboard is telling me, example of what I see....
- CPC Bids , Impressions = 10,000, Clicks = 1,000, Estimated Earnings = $XYZ.00
- Unbillable , Impressions = 100,000, Clicks = 10,000, Estimated Earnings = $0.00
I highlighted what I don't get. To me unbillable impressions is ads that got seen but not clicked after someone opened a link unit, which is fine. What in the world is the clicks number representing? People that clicked on an ad but I'm not getting paid? If so, why not?
I would expect zero clicks to be reported where/when they didn't click through(making the impression unbillable). What am I missing? Those numbers are made up but my dashboard shows that I am paid for 10% of clicks when those are combined.
What exactly is generating the number of clicks in the unbillable column?