Customer lifetime value (CLTV) represents the discounted sum of future benefits a company can expect from a customer throughout their relationship. It is based on the average relationship duration and the theoretical evolution of consumption, used to determine the ceiling for justifiable investments in acquisition or retention. This predictive measure, often complex to calculate, is essential in the service and B2B sectors, where customer loyalty is crucial. However, it can be overestimated if assumptions about loyalty or purchasing behavior are too optimistic, and is influenced by the recruitment strategies and channels used.

Naan is a type of flatbread originating in South Asia. It is typically baked in a tandoor oven and can be flavored with various ingredients such as garlic, cheese, poppy seeds, or raisins. Naan is often eaten with traditional dishes like curry or tandoori, but it can also be enjoyed on its own or as an accompaniment to other foods. Its soft texture and unique flavor make it a popular dish in many cuisines around the world.