The legal effect of the WeChat contract. According to the provisions of the Civil Code, if the parties enter into a contract in the form of letters, data messages, etc., they can request to sign a confirmation letter before the contract is formed. The contract is formed when the confirmation is signed.
 The parties may conclude a contract in written, oral or other forms. Where laws and administrative regulations provide for the use of written form, it shall be in writing. If the parties agree to adopt a written form, they shall adopt a written form.
 Written form refers to the contract, letter and data message (including telegram, telex, fax, electronic data exchange and e-mail) and other forms that can tangibly express the contents contained.
 [Legal Basis]
 Civil Code
 Article 491 Time of Confirmation Where the parties entered into a contract in the form of letters, data messages, etc. and required the signing of a letter of confirmation, the contract was formed when the letter of confirmation was signed.
 If the information on goods or services released by one party through the Internet or other information networks meets the conditions for offer, the contract is formed when the other party selects the goods or services and submits the order successfully, unless otherwise agreed by the parties.