Both California contract law and tort law allow for legal action when a third party wrongfully interferes with a contract or ongoing business relationship. Intentional IWPEA occurs when a defendant interferes in an economic relationship between the plaintiff and a third party.Intentional interference with contractual relations" and "inducing breach of contract" are types of commercial torts and unfair business practices in California Tortious interference refers to the action of a third party who causes harm to an ongoing business arrangement. The court held that a plaintiff asserting a tortious interference claim involving an atwill contract must plead an independently wrongful act. California courts have long recognized causes of action for tortious interference with contract and tortious interference with prospective economic advantage. A cause of action exists for negligent interference with another's prospective business advantage if the defendant acts unreasonably and wrongfully. A type of unfair business practice that occurs when someone intentionally interferes with an established business relationship using unlawful or wrongful means. If the defendant was a competitor regarding the business involved in the contract, his interference with the contract may not be improper. Proving to a court that a third party intentionally interfered in a business relationship or contract is complicated.