Retargeting is a digital marketing strategy that targets users who have previously visited a website or interacted with a brand but did not complete a desired action, such as making a purchase. This tactic involves displaying targeted ads across platforms like Google, Facebook, and Instagram to re-engage potential customers. Retargeting is essential for CRM-driven marketing strategies, as it helps improve conversion rates by reminding users of products or services they showed interest in. By segmenting audiences based on their behavior (e.g., cart abandonment, page visits), businesses can create personalized ads that encourage them to return and complete their transactions. Successful retargeting campaigns boost brand recall, enhance customer engagement, and maximize marketing ROI.