Card security code (CVV) can't be stored or reused.
The idea behind CVV is that someone using a stolen credit card is less likely to have this code, and therefore they will be unable to complete the transaction.
The effectiveness of the CVV is limited to the ability to keep it out of the hands of criminals, which is why it is prohibited by PCI standards from being stored. For merchants who charge customers on a recurring basis, the CVV code can be used with the initial transaction but cannot be stored for future transactions.
Depending on the provider requirement you may be asked to enter the customer CVV code when performing an authorization or a charge transaction, not all of the providers require CVV verification.