Can someone help me please. I'm applying to visit Canada as the extended family member of a permanent resident. I have an eTA and we have a completed the IMM0006, the next step is to complete the Webform and submit the documentation. When doing the webform though it asks me to provide either a UCI or Application Number. How do I get one of these? Do I use my eTA number as my Application Number? Please can someone help me as I would like to get this submitted as soon as possible.