Anticipating future customer behavior and making individual-level predictions for a firm’s customer base is crucial to any organization that wants to manage its customer portfolio proactively. More precisely, firms following a customer-centric business approach need to know how their clientele will behave on different future time scales and levels of behavioral complexity (Gupta & Lehmann, 2005; Fader, 2020): What are they going to do in the immediate future and when do they make their next transaction with the focal company, if any? Are some of them at risk of stopping doing business with the firm? How exactly do seasonality and other time-based events influence the propensity of customers to buy?