What is Cash on delivery (COD)?
Payment collected by the driver at the door — cash, card or cheque — recorded against the order the moment it is taken, so the day’s takings reconcile themselves.
COD is still common wherever customers prefer to pay on receipt — restaurants, groceries, couriers running many clients. The operational problem is not collecting the money; it is knowing at the end of the day exactly what each driver should be holding, for which client, and having a record if anyone disagrees.
Done well, the driver records the amount and method in the app the moment it is collected, the order carries the payment record, and per-driver and per-client reconciliation is a report rather than a count.
In PrivateMile: cash, card and cheque collection are recorded in the driver app at the door, attached to the order, and reported per driver and per client — and a payment-collected event is available to webhooks and Zapier.