Configuring the BIOS password on a Lenovo device for the first time, requires manual labor. Either by you or by the OEM before shipping. For security reasons, this cannot be done remotely.
So, what if the idea of having a supervisor password on your devices is relatively new, and you have thousands of devices out there without?
Then you’ll have to come up with a process on getting to them manually, and in this process, knowing exactly which devices that needs attention is key.