Smart campaigns are created using the assets you upload, so it’s important to ensure you have a diverse set of creatives across ad formats. There is no additional cost to having more than 1 ad, and it also allows Google to optimize your campaign performance based on the best-performing ad.
What you can do
For best results, we recommend at least 3 ad versions for each Smart campaign. Learn more about how to write an effective ad for Smart campaigns.
To quickly make more ad versions, click on Write another ad after you’ve finished writing your ad.
Need something else?
Check other common reasons why your campaign performance is fluctuating.