A Unity ID allows you to buy and/or subscribe to Unity products and services, shop in the Asset Store and participate in the Unity community.
Separate names with a comma.
Same here https://learn.unity.com/project/unit-2-basic-gameplay?uv=2020.3&pathwayId=5f7e17e1edbc2a5ec21a20af&missionId=5f71fe63edbc2a00200e9de0