The “Compare to” function allows you to compare historical data, whether it’s daily, weekly, monthly, or yearly
Compare to allows you to select and compare two different time frames. In the example below, we are comparing data from 2/13 > 2/16 vs 2/17 > 2/22. Notice that all column names are duplicated Spend and Spend (2). Spend = 2/13 > 2/16 and Spend (2) = 2/17 > 2/22. This is very useful for discovering campaigns, ad sets and ads that have fatigued over a period of time.