You will receive an email about one month before the license key expires. Clicking on the link provided in this email directs you to the checkout page with pre-filled information for the renewal.
It is also possible to renew from you Account page > license keys tab. Click on “Extend license” and you will be redirected to the checkout page with pre-filled information for the renewal.
NB: If you purchased the Polylang Business Pack, you received 3 license keys, one for Polylang Pro, one for Polylang for WooCommerce and one for the Polylang Business Pack. Only the license of the Polylang Business Pack must be renewed (the other two will be automatically renewed at the same time). This will allow you to continue to take profit of the discount associated to the bundle.