A master service agreement (MSA) is a fundamental contract outlining the scope of the relationship between two parties. Get up and running quickly with a master service agreement template New York.This downloadable template will get you selling in no time. A master service agreement or MSA is the heart of a business relationship. This guide outlines the purpose of MSAs and includes a checklist and a free template. A Master Service Agreement or MSA is critical to a company's success. Master Service Agreement templates should match a company's objectives. TABLE OF CONTENTS. Page. Learn all there is to know about master service agreements, including their scope, how to create them, and how to manage them efficiently. A Master Service Agreement (MSA) is a document that outlines the terms and conditions upon which work will be performed between two parties.