Since one of the primary and critical parts of responsive ads is the headline, you must use best practices to make it best for high ROI. For example, the headlines should have targeted keywords, the solutions you’re providing, a proper order to make sense, and different lengths of characters (don’t use the allowed maximum limit of characters always). Most importantly, a headline should have variations like different CTAs. In addition, pinning the headlines can assist you in keeping the headline in a fixed position (if you want).
The descriptions of the Google Responsive Search Ads can be proved game-changers for your business. Therefore, it would be best to optimize the descriptions of Google Responsive Search Ads by adding at least three descriptions that should be unique and in proper order, pinning the descriptions at a fixed position, and utilizing the spaces.
The Return On Ad Spend (ROAS) for Google Ads is one of the most challenging metrics to measure, but checking different data like ROI can lead to the general benchmark. The benchmark is 200%. In other words, for every $1 spent, the return is $2 on average.
Optimizing Google Ads campaign vary as per industry and budget. You might need to optimize and update it weekly according to the industry, budget, and target, but a general idea to optimize Google ads campaign once every two weeks is a good practice.
The RSA shows up to 3 headlines, while the ETA shows only two headlines. Similarly, the number of descriptions shown varies in both cases; for example, for RSA, up to 2 descriptions (each of 90 characters) are displayed, whereas, for ETA, only one description of 80 characters is displayed. In the end, a critical difference is the total max length which is 300 for RSA and 150 for ETA.