Cart Abandonment Retargeting is retargeting people who added products to a cart but did not complete checkout.
It matters because most visitors do not convert on the first visit. Retargeting terminology helps teams create thoughtful follow-up sequences, avoid wasted impressions, and respect audience exclusions and privacy expectations.
Example
An audience rule may identify eligible users who added an item to a cart but did not produce a purchase event. Exclude completed purchases and verify the event logic before showing a reminder about an unfinished order.