I switched to adcenter beta just last week to use some of thier new tools to think that it will help me to improved keyword management however it was a nightmare all my accounts traffic was drop to more than 95% from the previous week now almost got no traffic at all.. anyone knows about this? please help.
I was told it was the recent (3 day old) new quality score they have implemented. And I read somewhere that it applies to a limited number of people first until it populates out.