It may also have conditions that are implicit in the contract, like any express contract. Can implicit conditions therefore be excluded by an entire contractual clause? Any exclusion language must be clear and explicit. An entire contractual clause does not exclude an implied clause without specific wording. However, the express conditions cannot be the entire contract. You cannot recognize an explicit agreement in business transactions (see the different types of express contracts above: oral/written/partially oral, partially written). A term can be explicit or implicit.  An explicit time limit is indicated by the parties during the trial or in writing in a contractual document. The implied conditions are not specified, but nevertheless constitute a provision of the contract. The acceptance of an explicit contract must be unambiguous, which means that it must correspond exactly to the conditions offered in the contract. If a party accepts the contract but attempts to change its terms and conditions in any way, then that party does not clearly accept the contract and instead attempts to make a counter-offer.
As soon as a counter-offer has been submitted, the contract is no longer considered an express contract. If the terms of the contract are uncertain or incomplete, the parties may not have reached an agreement in the eyes of the law.  An agreement does not constitute a contract, and failure to agree on key issues that may include elements such as price or safety may result in the failure of the entire contract. . . .