Somehow we have a big difference in the number of clicks between the aggregate report and the channels report. The impressions are OK: all channels add up to the aggregate number of impressions. But somehow the clicks and earnings don't add up. We're only using url channels at this point. Just to be clear: the sum of the channel clicks is much
lower than the aggregate and we don't have double url's. All channels are at page level.
It's just the clicks and earnings that are out of line, impressions seem to be fine.
What could be wrong?