How negative keywords influence in PPC?
A negative keyword is a PPC match type (or keyword targeting option) offered by most search engine advertising platforms, including Google AdWords. Negative keywords allow you to selectively filter who sees your ad, based on their search queries
Negative keywords are words you can add to your PPC account that will prevent your ads from showing if a search query includes them.
For example, if you added “black” as a negative keyword, your ads would not show if someone searched for “black sweater.”
Negative keywords are words or phrases that will prevent your ad from being triggered by a particular search query. They can help you send the correct traffic to your site based on your specific campaign goals. They can also save you money by eliminating irrelevant search queries from triggering your ads.