We have assumed that this Q&A is referring to a business-to-business transaction. Additional considerations may apply in a business-to-consumer contract. Formation of contract It is first necessary to consider whether a contract has been formed or not, and if so what its terms are. A legally binding contract must, among other things, comprise both an offer and acceptance. Practice Note: Forming enforceable contracts—offer analyses the requirements for a legally binding offer, and considers what we mean by 'offer', how to distinguish an offer from an ‘invitation to treat’, with relevant common examples, different species of offer, ie offers which are 'subject to contract', heads of terms and unilateral contracts, and how offers can be terminated. Practice Note: Forming enforceable contracts—acceptance analyses the requirement of acceptance in the context of forming enforceable contracts, including what we mean by 'acceptance', the different methods of accepting an offer (including