Is the reply verification code legal and valid?

Yes SMS verification code confirms the signing intention, which is common in the process of electronic contract signing, mainly to prove that the signatory really understands the contract and is willing to sign it, and it has legal effect. The verification code must meet the requirements. Electronic contract refers to an agreement in which the parties clarify their mutual rights and obligations through e-mail and electronic data exchange in order to achieve a certain purpose under the network conditions.