Contract stack

The set of documents that together form a contract between the parties. The contract stack typically includes the main agreement and any related documents, such as General Terms and Conditions, (Supplier) Codes of Conduct, product and service specifications, supplier requirements, and other appendices. See ‘Sustainability in your contract stack’ in Module 2.

The contract stack is often complemented by parallel contracts that influence how commitments are implemented. Individual transactions based on quotations, purchase orders, order confirmations, or similar exchanges, may further specify or operationalise the agreement in practice.