I am working on a new account that had very specific campaigns pointed to a home page. I am going to change the Adwords destination URL to a specific page which will have a better quality score. Should I change destination URL in an existing ad group or make new campaign and or ad group? Thanks.
Look what happened to me. First I had direct linking in my campaign, then when I changed my destination url to a landing page, while the campaign was active my quality score went up. However, because my landing page wasn't doing well, I decided to change everything back. When I did it, my quality score just jumped down to "Poor" from "Great" and CPC went up as well. I think you should pause your campaign before changing the destination url. You should be fine.
What would be a typical result? Is there normally a transition where results bounce around or does it reset immediately based on the new landing page?