Internet of Things (IoT) is in every business in todays time. IoT is a web of billions of devices that are connected through the internet. In other words, this is the system in which all devices talk to each other. In this paper, we will know what is SUPPLY Chain Management and what is the need for IoT in it, what are its benefits, and what are the challenges. In Supply Chain Management, the product is delivered to the right customer at the right time. It is a global network that acts as a chain from the time the product is made to take it to the customer. But making this chain was very easy the first time because the number of customers was less, apart from this the company had a small network, within which she used to work. But now the network is big, and the number of customers is big, so the company is now taking the help of IoT. In this article, we will know the meaning of supply chain management which has been given by different authors. Along with this, we will learn about IoT. What is its need and what are its benefits? In a way, we will do an overview study. How IoT has taken its steps and how the supply chain management is benefiting from it and at the very end we will see what is the benefit to the customer as well. This article of ours will be helpful for all those who want to take an overview of all these things