You want to try omnibidding, but recognize that some categories are offline only. Which omnibidding setup should you use?

The correct omnibidding setup is at the campaign level because it allows for strategic segmentation of your advertising efforts. By setting up omnibidding at the campaign level, you can create separate campaigns for your offline-only categories and apply specific bidding strategies tailored to their unique characteristics and conversion goals. This ensures that your bids are optimized for offline sales without negatively impacting campaigns focused on online conversions. Ad group level is too granular and would make managing offline-only categories cumbersome. Account level is too broad and would not allow for the necessary differentiation between online and offline categories. Ad level is not a valid setting for omnibidding.