Ad history wiped out by specifing a different location?

[lisarae]

I am trying to determine whether or not the stats for our Adword campaign will be wiped out if I start playing with our target locations. We currently hitting all of Canada, but I'd like to cut costs by targeting certain cities.

[SanDiego Art]

Stats for Ads shouldn't be wiped away unless you change the ad itself. Modifying the Campaign Settings (for Geo-targeting), shouldn't affect past data either in the interface or the reports section. Changing a URL for the ad, or the ad copy itself will "delete" the stats for the old ad and be reset back to zeros.

[poster_boy]

I am trying to determine whether or not the stats for our Adword campaign will be wiped out if I start playing with our target locations.

To be honest, I don't know if it does... but I would be surprised if it didn't. If Google is trying to predict performance for a keyword, ad and URL, isn't the targeting of that keyword and ad an incredibly important driver of this?

Theoretically, if you're tightening your targeting - your history should be updated as an increase, I'd imagine...