Which purchasing document represents a set of promises that are legally enforceable?

A contract is a formal and legally binding agreement between two or more parties that outlines the terms and conditions for a transaction or relationship. It comprises a set of promises that, if one party fails to fulfill their obligations, the other party has legal recourse to seek enforcement or damages. Contracts typically include details such as the specific goods or services to be provided, the delivery timelines, payment terms, and any other conditions that are agreed upon. The enforceability of a contract is what sets it apart from other documents like requisitions, certifications, or requests for proposals, which may serve different functions in the procurement process but do not establish the same level of legal obligation.