Page 15 Article I – 19: A service provider or supplier, who offers goods and services in professional capacity by electronic means, shall make available the applicable contractual conditions in a way that facilitates the conservation and reproduction of such conditions. The offer shall comprise: 1) The various stages to be followed to conclude the contract by electronic means; 2) Such technical facilities as would enable the user to identify the errors committed in data input and to correct such errors prior to conclusion of the contract; 3) The languages to be used for concluding the contract; 4) Where the contract is to be lodged, the modalities for this action by the author of offer and the conditions for accessing the contract so lodged; 5) The means of electronic consultation of the professional and commercial rules by which the author of the offer intends to be guided, if need be. Article 1 – 20: For the contract to be validly concluded, the recipient of the offer shall have had the opportunity to verify details of his/her order, especially the price thereof, prior to confirming the said order and signifying his/her acceptance. Article I – 21: The author of the offer shall acknowledge receipt of the order so addressed to him/her without unjustified delay and by electronic means. The order, the confirmation of acceptance of offer and acknowledgement of receipt shall be deemed to have been received when the parties to whom they were addressed, can access them. Article I – 22: Agreements concluded between professionals may be exempted from the provisions of Articles I – 20 and 21 of this Convention. AU Draft0 010111