The Badge must be assigned to the user. Refer: How to assign Badge ID as credential to users

The badge reader must be connected to the Windows system.

Ensure the Tray application is running in the background.

Ensure the Supervisor app is closed.

Epic Vault Password must be created for the User. Refer: How to create Vault Password for a user

The PIN must be enabled and assigned to the user. Refer: Tenant Admin Portal - How to Configure PIN