How many times is the shopping verification code limited?

Time: Generally speaking, there is a time interval for users to obtain the verification code, which is generally 60 seconds. If the user does not receive the SMS verification code within the specified time, he can click Get again to get the SMS verification code again. The valid time limit of the verification code is to prevent criminals from using violent means to crack it. General SMS service providers will remind enterprises to set the effective time of verification code, and the verification code will be invalid after the effective time.

Frequency: Although SMS verification code is very convenient, the frequency of use is limited, and users can't use it as many times as they want, which is also a barrier to prevent some boring users from frequently obtaining SMS verification code. Under normal circumstances, most people will definitely not register their accounts or change their personal information frequently, so if users repeatedly send verification code requests to the background (all with the same mobile phone number), they will not be able to use them normally after reaching the limit. Generally speaking, setting a mobile phone number can only send verification code requests five times at the same time.

Frequency: When users change their passwords and register some accounts, they cannot enter the SMS verification code correctly, and the verification will be considered invalid. Because the normal and standardized verification code short message can be delivered in a short time, the user can input it completely within the effective time. If you want to re-enter the SMS verification code, you can only re-obtain and re-enter.