one of my popular adgroups usually yields about 1000 clicks per day, with a CTR of 2%. Now yesterday something strange happenned, when for apparantly no reason - my traffic dropped sharply by 97% (!), and the click yield dropped to 30 clicks (CTR is still 2%)
when I search on google for keywords in this adgroup - i don't see my ad. I even raised my max bid - didn't help. i judge the drop to be too sharp to be increased competition. everything looks "normal" and "active" on the account.
could a small change in ad copy or target URL trigger such a huge loss of traffic, by my ad being under editorial review or for some other reason?
obviously something smells wrong. what could be the reason for loosing my traffic?