Why is optimizing your ad rotation when setting up your ads recommended?
With Optimize feature enabled Google will rotate your ads and try to show the best-performing one. If you have multiple ads within an ad group, your ads will rotate because no more than one ad from your account can show at a time. The idea is that by having multiple ads within an ad group, you’ll be able to get data insights that will help you refine your ad quality and performance. Ideally, you should use at least 3 or more ads in each group. Going beyond that, you should make ad rotation a priority. By doing so, you’ll be able to take advantage of this feature and improve your overall advertising strategy.