Parties of the contract
Consumer law applies whenever a sales contract is concluded between a consumer and a trader.
A consumer is a natural person who performs an act in law not directly connected with his/her economic or professional activity. For instance, if you buy a printer on behalf of your employer and the printer turns out defective, you cannot complain on the basis of your consumer rights. In the case of consumer sales, the other party to the transaction is a natural or legal person selling goods in the framework of his/her trade activity or enterprise.
Thus, the purpose of consumer law is to protect and empower consumers in relations with professionals. It should be noted that when goods are purchased from a private person, consumer law (namely guarantee, warranty, the right to withdraw from a contract) does not apply.