A master purchase agreement is a legally binding contract between buyer and seller, and typically relates to buying and selling goods rather than services. Get up and running quickly with a master service agreement template New York.This downloadable template will get you selling in no time. (Nuance) and you (Company). Upon receipt of an authorized Purchase Order, Supplier shall commence performance of the Services in accordance with the terms therein. In order to be accepted all required documentation must be complete. Students must complete an application prior to participation in the program. What To Look for in a Master Service Agreement Template. A services agreement is used to document a transaction where the seller provides a service to the buyer.