When conducting their business activities, companies are required to adhere to legal rules on matters such as advertising, price indication, clearance sales, seasonal sales, and so on.

Contracts with consumers are also strictly regulated by law; account needs to be taken of specific information obligations, any right of withdrawal that applies and numerous contractual conditions that are illegal, among other things.

Relations between companies are also subject to legally defined protective measures, including a prohibition of misleading and aggressive market practices.