Article 11
Placing of the order 1. Member States shall ensure, except when otherwise agreed by parties who are not consumers, that in cases where the recipient of the service places his order through technological means, the following principles apply: - the service provider has to acknowledge the receipt of the recipient's order without undue delay and by electronic means, - the order and the acknowledgement of receipt are deemed to be received when the parties to whom they are addressed are able to access them. 2. Member States shall ensure that, except when otherwise agreed by parties who are not consumers, the service provider makes available to the recipient of the service appropriate, effective and accessible technical means allowing him to identify and correct input errors, prior to the placing of the order. 3. Paragraph 1, first indent, and paragraph 2 shall not apply to contracts concluded exclusively by exchange of electronic mail or by equivalent individual communications. Section 4: Liability of intermediary service providers