Involuntary churn refers to the loss of customers due to factors outside their control, like technical issues or expired credit cards. Voluntary churn, on the other hand, refers to the loss of customers due to factors within their control, like dissatisfaction with products or services. For e-commerce companies, managing involuntary and voluntary churn is crucial for enhancing customer retention and driving revenue growth. By identifying and resolving the factors responsible for involuntary and voluntary churn, businesses can improve customer satisfaction, increase customer lifetime value, and improve profitability.