The 1st few days of a campagin there seems to be a synchronisation error between the campagin overview screen and the campaign details. The overview screen reports more clicks and impressions and when you drill down to your campaigns and adgroup those impressions and clicks are not there (yet).
It usually settles in a few days. Has anyone else noticed this?
I'm now seeing stats from in the past where each level (main screen, campaign screen, ad screen), if the numbers are added up, don't match.
I can see this on the current day, as maybe it takes G a while to assign the numbers, but when running a report for last month and seeing the reports match the campaign summary numbers, but don't match campaigns and ad stats for some accounts is a little disturbing.
The strange thing is though that you would expect the details to be "correct" but the top summary page always seems to report more than the details (and hence more current_, which is strange as this data does come from one (huge) database I assume.
Its a large IT system thing I guess....
