- Allows you to bid based on a target return on ad spend — Target ROAS Bidding
- Uses advanced machine learning to automatically optimize bids — Maximize Conversions Bidding
- Is an automated bid strategy that sets your bids to help get as many clicks as possible within your budget — Maximize Click
- Helps you get more conversions by automatically modifying your manual bids already set — Enhanced CPC
Here you can read the explanation