There are several reasons why a warranty contract could be used: Consider De Lassalle v. Guildford, a case of a secondary contract in which the second party rented a house to the first. The landlord promised to fix the flow before the tenant moved in. This promise was considered by the court as an ancillary contract that allowed the tenant to file a complaint if he found that the exits had not been repaired as promised. One theory says that it is possible to accredit as a guarantee contract for a third party, since credits are motivated by the buyer`s necessity and, in application of Jean Domat`s theory, the cause of a credit is that a bank issues a credit in favor of a seller in order to relieve the buyer of his obligation to pay directly to the legal tender seller. There are indeed three different entities that participate in the accrediting transaction: the seller, the buyer and the banker. Therefore, a credit corresponds theoretically to a guarantee contract accepted by the conduct, or, in other words, to an implied contract.  It is briefly referred to as the Slogan Evidence Rules, which do not apply to warranty contracts, but only to primary contracts. The warranty warranty applies when more than three parties participate in a warranty contract. In these situations, each party must ensure that it assumes its responsibilities to the other parties. The promisor must have explicitly or implicitly requested the main contract and his conviction must be for the purpose of obtaining the entry of the other party into the main contract.  According to Lord Denning MR, an ancillary contract is considered binding ”when one person makes a promise or insurance to another, with the intention of reacting by entering into a contract”.  Warranty agreements are independent oral contracts between two parties to a separate agreement or between one of the original parties and a third party.3 min read A warranty contract is generally a unilateral contract concluded taking into account the party whose contract operates and agrees to enter into the main or principal contract.
which contains additional conditions relating to the same subject matter as the main contract.  For example, a contract of guarantee is concluded when one party pays the other party a certain amount for entry into another contract. . . .