Hi,
I am a small advertiser but have found that my ad spending is much higer than what i had budgeted for in the campaign . I have been on adwords for months, have adequate experience with pausing , deleting ad groups, campaigns. It happened the first time 3 days earlier, i then thought that since i resumed a dead campaign they assumed that the backlog of daily unused budget was available. I started a new campaign and to my horror discovered that it far exceeded the budget.
I suspect that since there is a lag between reporting and the data is collected at specific time intervals, the control can easily be exceeded if one has not placed a high enough campaign budget on a busy keyword .
niko
