Activation Kit Registration Key

We plan on selling our training program by using Online Activation and setting the Registered certificate to expire after 365 days. After the certificate expires, can the buyer renew that Registered certificate with the activation kit? Thanks in advance!

If the key expires, the customer will need a new activation key. So you’ll have to generate a new activation key for your buyer and provide it to him.

Do you have to generate the new key from a different certificate or can one still use the same certificate, If am to create a subscription say 30 day, 60 days and 90 days for the same software do I have to have a different certificate for each one of the subscription or do just use one and keep changing the date of expiration. Thanks in advance