What targeting rules display an ad to users who have viewed a product, but not purchased it?
- Positively target all product viewers AND negatively target all product purchasers
- Positively target all product purchasers AND negatively target all product viewers
- Negatively target all product purchasers AND collect purchase IDs using u-variables
- Positively target all product viewers AND collect purchase IDs using u-variables
Rules are the building blocks of Optimize targeting. The experiment will execute when targeting rules are met. You can target pages on your site, geographic regions, and specific user behavior. You can also combine multiple rules.
Read more here: https://support.google.com/optimize/answer/6283420