Consider the following when choosing a bid strategy for a Value-based Optimization for web:
Bid Strategy | Scenario | Considerations |
Minimum ROAS | •​ You want to meet or exceed a specific return on ad spend (ROAS). • You require more control over the purchase value you generate from ads than what is possible with the highest value bid strategy. | •​ If your minimum ROAS value is set too high, ad delivery may sometimes stop and your budget may not be spent in full. •​ The system will aim to stay above the minimum ROAS control you specify, but it's not guaranteed. •​ If your goal is spending your budget in full than always meeting or exceeding a specific ROAS, highest value bidding may be a useful option. |
Highest Value | •​ You want to spend your budget in full while focusing on getting higher value purchases. | •​ When you use highest value, the system aims to fully spend your budget and bid for the highest possible purchase value. •​ Your ROAS may decrease as your cost increase. |