Business contracts have come to have an entire agreement clause that seeks to exclude all communications prior to making the contract. Assigned contracts are fully binding, the clause is highly effective in excluding all representations, promises and agreements preceding the signed contract. The note reviews court judgements to explore the scope of an entire agreement clause. The clause is valued for bringing certainty to the contract. The term “representation” refers to statements made on the substance of the transaction. It does not include misrepresentations which is to mislead the party. The court judgements studied herein emphasize the need to use clearer and emphatic terms to exclude misrepresentation and its effects.