Inactive customer follow-up refers to the process of reaching out to customers who have not engaged with a business or made a purchase in a significant amount of time. This proactive approach involves reconnecting with these customers through various means, such as personalized emails, phone calls, or targeted marketing campaigns, in order to re-engage them and potentially regain their business. The goal of inactive customer follow-up is to nurture relationships with past customers and encourage them to become active again, ultimately increasing customer retention and loyalty. This practice is crucial for businesses to maintain a strong customer base and ensure continued success.