What happens if the parties do not consent to amend a written contract?

When parties do not consent to amend a written contract, no changes can be made, and prior agreements cannot be added. This principle underscores the importance of mutual consent in contract law. A written contract reflects the agreed-upon terms between the parties. If one party wishes to change or amend those terms but does not receive the other party's agreement, the original contract remains intact, and its terms are enforceable.

Contracts are considered binding agreements based on the consent of the parties involved. If one party tries to make changes unilaterally without mutual agreement, those changes are not valid. Thus, without consent, the written contract continues to govern the parties' rights and obligations as originally agreed upon. This principle ensures legal stability and predictability in contractual agreements, as it prevents parties from unilaterally altering the terms that were once agreed upon.

The other options do not accurately reflect contract law principles. For instance, a contract would not be null and void simply due to a lack of consent for amendments, nor would it automatically be interpreted in favor of the drafting party, as interpretations depend on specific legal standards rather than drafting status. Additionally, the original terms cannot be deemed invalid unless specific legal grounds for invalidity exist.