I reserved a vaccine on the medical deer, so I can fill in the verification code. Can I fill it out if it hasn't been typed yet?

You can fill it in. Write-off code can automatically generate a series of random numbers and two-dimensional codes for the person filling in the form after the form is filled in successfully. Operators can check the filled information, confirm the exchange and complete the verification through WeChat scanning or computer input. It will not affect the vaccination of the vaccine, and the application background will also record all the write-off history.