Systems and techniques are disclosed that provide device-based coordination of multi-party delivery processes. One example implementation involves receiving a payer-invite request from a requester device. The payer-invite request requests an invitation be sent to a payer to pay for a delivery order. The delivery order specifying one or more items to be purchased and delivered to a requester location associated with the requester device or inputted by the requester. The system sends the invitation to a payer device associated with the payer and receives a payment from the payer device. The system fulfills the delivery order by identifying a fulfillment center, a driver, and/or a puller and sending communications with order information and instructions to the devices of those parties to coordinate the delivery. For example, the system sends a driving instruction to a driver device instructing the driver to pick up and deliver the items.