This article covers two Canada Post options in SKULabs: return labels, and the Delivery Handling option that controls whether Canada Post may safe drop a parcel.
Canada Post return labels
With a Canada Post account connected directly to SKULabs, you can create Canada Post return labels the same way as other return labels. See How to create a return on an order and How can I automatically print a return label to include in the box when I ship an order?
Returns are domestic only, from an address in Canada to an address in Canada.
Use a Canada Post return service: Regular Parcel, Expedited Parcel, Xpresspost or Priority.
Canada Post bills a return label only when it's used, so SKULabs shows a cost of 0.
Return labels are never manifested, and voiding one in SKULabs doesn't contact Canada Post.
Delivery Handling: Do not safe drop or Leave at door
Canada Post can safe drop a parcel, leaving it in a hidden spot when nobody is home. To control this without paying for a signature:
Go to Settings > Shipping > Rules and add or edit a rule.
Add the action Set delivery handling method (only for shipments via Canada Post direct or EasyPost) and pick an option.
Save.
Once a rule sets it, a Delivery Handling dropdown shows in the ship window, so you can change it for a single shipment. The options are:
Do not safe drop: Canada Post won't leave the parcel in a hidden location. Works with Canada Post connected directly and through EasyPost.
Leave at door (only via Canada Direct): Canada Post leaves the parcel at the door without a delivery card. Canada Post connected directly only.
Delivery Handling is skipped when the shipment requests a signature, because a signature already prevents safe drop. With Canada Post connected directly, it applies only to shipments within Canada.
Delivery Handling is a different setting from Non Delivery Handling (Return to Sender, Return at Sender's Expense, Abandon), which decides what happens when a parcel can't be delivered. For an error with that option, see Canada Post Error 8716.