Contract variation A contract variation is a subsequent change to an original contract. Not all changes to a contractual relationship amount to an effective or valid variation. Sometimes the changes are such that the end result is not a varied contract, but a rescinded, assigned or novated contract. For general guidance, see Practice Note: Contract variation. Contracts can be varied in several ways, see Practice Notes: • Contract variation—Written variation • Contract variation—Oral variation • Contract variation—Variation by conduct • Contract variation—Unilateral variation • Contract variation—Waiver, or • Contract variation—Sustained minor breach An existing contract may be varied provided that the variation satisfies the usual requirements for the creation of a binding agreement—ie offer, acceptance, consideration and contractual intention of the parties (see section on ‘Consideration’ in the above Practice Note and more generally: Forming enforceable contracts—overview). A contractual variation will itself be a contract between the parties to the existing agreement and therefore consideration must be provided for the variation to take