Which license you have to buy for a WordPress Multisite Network?

For WordPress Multisite networks, you will have to purchase a license that can be activated on multiple websites.

Each subsite in a multisite setup requires an activation. Therefore, if for example, if you have a 20-subsite network and would like to activate a license for your entire network, You will need to purchase a license that can be activated on at least 20 sites or multiple licenses whose combined activations limit is 20 or more. Super-admins can activate a license across the entire network, delegate the license activation to site admins, or handpick which subsites to activate the license for.