Hi, I have been advertising my website on Google for nearly two years now. I havent changed my current ads for a long time and have good quality score as well as rankings. My question is: If I stop advertising for my existing website and create ads for a new website and start advertising for the new website (But the campaign will be the same) how will my quality score change? Thanks.
It probably will because the ads are different and so is the URL. (Remember that CTR and landing page quality can affect the QS.) Here's what I'd do: Pause the current campaign and copy it. Then update the ads and URL on the new (copied) campaign. That way you'll preserve your quality score on the original campaign should you want to restart it.
I think adwords looks to every new campaign differently on there own merit. why are you not asking adwards help team, they better know. Just email them and when you get reply post here so we also know better.