Hi, Last month I separated the Display Network campaign into two: One campaign consternates only on Automatic placements, and the other one on Managed placements. (Both campaigns under the same account). For some reason, the Cost/Conv. went crazy, from $18 to $55 in one week!!! Does the problem can occur because both campaigns uses the same sites to advertise in? (Example: the Automatic placements campaign may publish in gmail.com and the Managed one also uses the same domain to publish in). Can anyone tell me if that may be the problem? , if not, what can cause it? Thanks.
The CPC didn't change much, the only question is, does the fact that my Ads can be shown in to different campaign can effect the the Conversions Rate?
The real question is, why do you have both? Managed placement is the better idea. You probably have a better ROI on it than the automatic placement campaign. So which one is getting the better results? Which ads? Which sites? You probably are getting a lot of unqualified or lesser-qualified clicks from a new site showing your ads. That will drive up your CPS. Or you changed your site in a way that is reducing your conversion rate. Last week for example, a client made a change to their checkout and conversions dropped by half.