I have a plugin that I want to sell on Envato and I want to know if I can provide license keys for each download. Since I want to limit the number of the domains the plugin is being used on. I have the licensing system on my website but I’m not sure if I Envato allows me to integrate it.
You do not need to provide license key it’s authentically added in your item.
This is item license key Here
There is no problem adding any code in your theme that you can find your item who where using.
Envato purchase code is the key of License. So for getting the license key Customer should to collect their purchase code