Final answer:
An Internal Customer is a person who works within an organization and carries out functions for the success of the organization, not the end customers.
Step-by-step explanation:
An Internal Customer refers to a person who works within an organization and performs functions that contribute to the overall success of the organization.
They are not the end customers who directly pay for the products or services provided by the organization, but they are the individuals within the organization who rely on the work of others to carry out their own tasks.
For example, if you work in the accounting department of a company, your internal customers would include the sales team who rely on you to generate accurate financial reports.