Hi again Andres,
So, you have this license file that for 20 Attended Robots. It means that when you upload this file in Orchestrator - License tab, you will be able to provision 20 Attended robots(in Robots page).
Let’s say you have 20 machines with Robots installed, but no license for these Robots. You upload the license file in Orchestrator, provision the Robots(as Attended) and connect your Robots to Orchestrator.
When you connect the Robot to Orchestrator, on the Robot machine, it will know that it’s license is Attended and will “act” accordingly. In your case, it means that in Orchestrator you cannot Start or Schedule a job on Attended Robots and can only be started manually from the Robot machine.
Note that license is per tenant.
More details on Attended Robots in the user guide:
Types of robots: https://robot.uipath.com/docs/introduction
Licensing a robot: https://robot.uipath.com/docs/licensing-a-robot
Connecting Robots to Orchestrator: https://robot.uipath.com/docs/from-orchestrator-and-the-robot-settings-window
If i missed anything or something is unclear please let me know.