By adding a clickable sign off component in the order and chat pages, I was able to have the customers remotely sign their packages off for delivery.
1. With this feature, there is a record of the customer asking the courier to drop the package at a certain spot. Coupled with the geotagging information from the image taken upon delivery by the courier, there is solid evidence of proper delivery and communication between both parties.
2. Whoever receives the package in the customer's stead signs off on the package. Coupled with explicit instructions in the chat to have it handed to a third party, their signature also acts as evidence of no foul play.
3. In cases where the user is unavailabel, the destinated courier for that package at the time could always communicate with the customer to best schedule a delivery time that works best for all parties involved.