Biometric ID is a secure and convenient way to access the Salesforce mobile app. On capable devices, you can unlock the app with touch or face authentication, instead of a PIN.
To use biometric ID credentials, your admin must require a PIN to unlock the app. When you have a biometric ID enabled on your device, you’re prompted to allow unlocking with biometric ID credentials when you first launch the app.
Note You can’t use biometric credentials to log in to the Salesforce mobile app.