401.304 Obligation of good faith. Every contract or duty within chs. 401 to 411 imposes an obligation of good faith in its performance and enforcement. History: 2009 a. 320. This section does not support an independent cause of action for failure to act in good faith under a contract. Hauer v. Union State Bank of Wautoma, 192 Wis. 2d 576, 532 N.W.2d 456 (Ct. App. 1995). Good Faith Under the Uniform Commercial Code—A New Look at an Old Problem. Eisenberg. 54 MLR 1 (1971).