A person responsible for planning, implementing, and controlling the physical flow of materials and information from points of origin to points of consumption to meet customer requirements at a profit is working in the field of

The person described in the question is working in the field of Supply Chain Management.

Step 1: Understanding the role The role described involves planning, implementing, and controlling the physical flow of materials and information. This means the person is responsible for overseeing the process of a product or service from its initial stage to its final stage.

Step 2: Identifying the field The process described is typical of Supply Chain Management. This field involves managing and coordinating the process of transforming raw materials into final products, and delivering these final products to customers.

Step 3: Understanding the goal The goal of this role is to meet customer requirements at a profit. This means the person is not only responsible for ensuring the product or service reaches the customer, but also that it does so in a way that is profitable for the company. This is a key aspect of Supply Chain Management.

So, the person is working in the field of Supply Chain Management.