Can you help analyze or explain the replenishing method in more details. I$\text{'}$m not sure I follow the one sentence you wrote about that process.

Supply chain configuration includes selecting merchants, parts, practices, and transportation methods at each step of the supply chain process. The four supply chains are lean supply chains, agile supply chains, fully flexible supply chains, and continuous replenishment supply chains. A lean supply chain defines how a well$-$made supply chain operates and ensures quick delivery of products to the end customer, with the smallest excess. Agile supply chain refers to the use of responsiveness, competence, flexibility, and rapidly managing how well a supply chain entity functions proficiently on a routine basis. Flexible supply chains mean that a company can easily regulate production levels, company access to raw materials for purchasers, and efficiently transport bulky orders to increase revenues. The replenishing product method is a real$-$time of supplies needed only for the sold amount.