Budget: do not set an upper limit for the budget, as Target ROAS would not reach its full potential with limited budgets.
Number of conversions for each campaign: For tROAS Bid Strategies, select a campaign that has generated at least 15 conversions in the last 30 days. If a campaign does not meet this requirement and you have the same ROAS target for multiple campaigns, you can set up a portfolio bid strategy for these campaigns at ‘Tools > Shared library > Bid strategies’.
Conversion Data: The ROAS target can be optimized towards Google Analytics or Google Ads Conversion Data or SA 360 Floodlight Tag Data.
Determine targets: Using the system generated ROAS target under “Campaign Settings” is a recommended practice. If you want to set your own goal, try to align it closely with your average ROAS for the campaign over the last 28 days.
Campaign structure: For optimal performance, you can group and consolidate products around ROAS targets.
Modifiers are not taken into account: Because tROAS optimizes for all signals, including location, mobile, and audiences – and for all audience types: In-Market, Affinity, Similar Audiences, Remarketing, Customer Match – bid modifiers are not required and therefore not considered in the determination.