Your customer is aiming to not only drive conversions but also track how those conversions drive users to enroll in their weekly newsletter distribution list. When setting up their data-driven attribution model in Search Ads 360, what else should you set up

Custom channel groupings are the correct requirement because they allow the customer to define and categorize their search traffic based on specific business goals—like distinguishing between generic brand engagement and high-intent newsletter sign-ups. While automated groupings handle standard categorization, custom channel groupings provide the necessary flexibility to label and group conversion paths according to unique criteria that reflect the user's journey toward enrollment. By setting these up within a data-driven attribution model, the organization can accurately assign credit to the specific touchpoints that lead to newsletter subscriptions, providing the granular insights needed to optimize for long-term user retention alongside immediate sales conversions.