Biometrics Appointment Required.
For UK Schengen and recently Canada. At your appointment you will have a digital scan of your face taken and also a scan of your fingerprints. You will also need to present your visa application, along with your passport and your supporting documents.
Does biometrics mean approval?
Biometrics is completely unrelated to whether or not your application is approved or refused. Some applicants received biometrics request a bit after AOR, while others many weeks later. PPR is the only good sign that means it's really going well for your application, until the final official "Approved”