Pre-Launch
- If you need to exclude recent purchasers, you will have to create two different segments and exclude them via the Audience Builder. 
- Audiences are computed and refreshed every day. 
Audiences Optimizations
- Audiences only apply to Onsite Display and Offsite campaign types. Audiences are where you select a group of shoppers you want to see your ads. 
- On products that are not purchased frequently (e.g. electronics), we recommend excluding recent purchasers. This will allow you to spend your campaign budgets on users that didn’t yet purchase your product. 
- Audience not scaling: Audience size optimization. - Increase the lookback window gradually, using 30 days at a time as a recommendation. 
- Add more categories or brands. 
 
- Audience not "performing" (low sales): Test out new audiences - Create audiences of users that have added products to cart with an exclusion of those that have purchased 
- Test shorter lookback windows to target users who have more recently shown interest. 
 
- Audience Size Alerts - Certain combinations can result in infinite audiences, making them impractical for use. The Builder blocks three specific scenarios that would create excessively large audiences. - Exclusion without any inclusions. 
- Exclusion of a segment within an "OR" grouping. 
- Exclusion of two segments within an "AND" grouping. 
 
 
- Depth of Nesting - The Audience Builder supports up to three layers of depth in nested algebra logic. 
 
- Logical Combinations - Understand the implications of using "AND" and "OR" logic. "AND" narrows down the audience, while "OR" broadens it. 
 
- Audience Size Management - Regularly check audience size to ensure alignment with campaign goals without overly limiting reach. 
 
