The barcode I was talking about is the one that courier used for scanning. Below is what I saw on the tracker, so I think we should use courier pick up instead of shipping label delivery.
https://myimmitracker.com/ca/trackers/consolidated-e-apr-tracker-express-entry-permanent-residency-application/cases/case-93215
Quote:
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Tips for others also looking for HK CNCC delivery through private courier:
1. Make sure you are selecting Scheduled Pick Up - NOT Shipping label. HK Police will not print label and ship themselves. You have to provide them label, they will print and need a courier to come pick up. Arrange your delivery through DHL telephone service if possible - will make it easier.
2. DHL will provide you 1 Waybill #. It is for HK to Canada. After your tracker shows "Delivery arranged no details expected - you can call DHL and get the 2nd Waybill number. It is for domestic delivery from within Canada to IRCC Office in Sydney , NS.
3. DHL is experienced with delivering documents to IRCC - they will do it themselves during office hours, you don't need to stress about them missing IRCC office hours etc.
4. After delivered successfully , you can get proof of delivery from your Waybill # 2 tracker. I uploaded through webform; Waybill #1, Waybill #2 , Proof of Delivery and short explanation that document successfully delivered by DHL as per proof of delivery. All documents merged into one PDF document.
HK CNCC is definitely the most difficult one as there are so many steps involved!"