More than one site

good day, I bought Sydney pro and have started another site. can I use the same Sydney pro license for this new domain ? if so, how do I go about upgrading the new site to pro ?

Hello there,

You can use the single purchase licence for multiple domains.

Follow the detailed instructions written in the below documentation

https://docs.athemes.com/article/111-upgrading-from-sydney-to-sydney-pro

Let me know if you any further questions.

Regards,
Kharis