Tortious interference is a legal theory intended to allow parties to contract to fulfill contractual obligations without thirdparty interference. Interference can occur when an outside party purposefully leads someone in a business agreement to break the terms of the agreement.Wrongful interference with a contractual relationship occurs when:1) A valid and enforceable contract exists between two parties. Tortious interference with business relations involves a third party using false claims against a business in order to drive business away. Defendants argue adidas's claim fails because adidas must show Nafta and. Both involve situations where one party does something to intentionally undermine another party's business transactions or relationships. Therefore, summary judgment in favor of Aetna on BAI's claim for tortious interference with a prospective business relationship is proper. Tortious interference is when a third party to a contract intentionally acts to harm the financial potential of the relationship. Tortious interference is an intentional and wrongful act that negatively impacts your contractual relationships. For tortious interference with a contract is the same as the measure of damages for breach of the contract interfered with, to put the plaintiff in the same.