However, the effectiveness of entire contractual clauses is not limited. A contract with such a clause can be considered an integrated contract and all previous negotiations for which the parties have considered different terms are considered to be replaced by final writing. However, many recent cases have found that merger clauses are only a rebuttable presumption. Questions often arise when disagreements over the importance and effect of such contracts or agreements occur and when a party attempts to look outside the terms of the contract to support a claim, defence or argument. Security contracts are also more difficult to claim. The Parol rule of evidence provides for the exclusion of a number of evidence from the agreement reached by the parties; the rule is not limited to the exclusion of oral evidence, but extends to documentary evidence. In addition, a generally developed comprehensive agreement does not affect the terms and conditions that are included in a contract. This is because the implied terms are not “before” the contract. They are part of the treaty itself. A full provision of the agreement does not exclude a claim in a misrepresentation, as the denial of contractual force in respect of a statement cannot influence the status of misrepresentation of the statement. The same clause in an agreement may contain both a full provision of the contract and another provision that seeks to exclude liability in the event of misrepresentation and breach of its obligations. As a result, a uniform approach to the development of these clauses has been put in place, in which the contracting parties use formulations that have been proven in their pre-structuring provisions.
As a general rule, a full provision of the contract consists of several parties comprising one or more of the following parts: a reference to “representations” in a full clause of the contract can be interpreted as an issue related to contractual obligations rather than a misrepresentation. In contract law, an integration clause, a merger clause (sometimes called a complete contractual clause, particularly in the United Kingdom)  is a clause in a written contract that makes the contract a complete and final agreement between the parties. It is often placed at the end or towards the end of the contract. Pre-contract documents that the parties wish to include in the contract must be collected with him or explicitly mentioned in the contract documentation.