When you are registering for Compass, you need to tick the box below the ‘Post code’ field titled ‘Tick this box if your postcode is outside the UK’ (see the image below.)
You will then be able to enter your postal code or local equivalent into the ‘Post Code’ field (with a maximum of 10 characters.) Please note, this must be the same as that recorded on your record on Compass. If you are unsure what this is, the Scout Information Centre will be able to assist you.