Hypernym for “sender” and “recipient” (in terms of a shipment) [closed]

What is a hypernym for "sender" and "recipient" in terms of a shipment?

I am searching for a name for a name of member of a class that can be both sender and recipient of a shipment.


Such a person would be a correspondent if sending and receiving letters. For shipments a customer might be appropriate. They would return shipments they refused and receive others.