Google extends the availability of auction and budget simulators to smarter auction strategies. Bidding simulator for the target ROAS. The auction simulator is only available for manual auctions and target CPA. It is now available for target ROAS campaigns. The screenshot below shows an auction simulator for the target ROAS wallet strategy, but you can also see the simulator icon at the ad group level in the campaigns Target ROAS who do not use a portfolio strategy. Target ROAS auction simulators are now available in Google Ads. Target ROAS auction simulators are now available in Google Ads. The simulator works in the same way as in manual auction campaigns and target CPA. The projected impact of a change is based on your auction data from the past seven days and assumes that all other influencers, such as your ads, landing pages, ads and offers from your competitors, all stayed the same. Budget simulator to maximize clicks, maximize conversions. These two auction strategies aim to spend your entire budget in order to maximize the number of clicks or conversions that the campaign can generate daily. If you use these strategies and regularly run out of budget before the end of the day, you can see the budget simulator icon appear in the "Status" column. It shows the expected impact of changing your daily budget. These simulations are also based on your auction data from the past seven days.