DIRECT-CHANNEL DATA UPDATE IN MEDIATED DATA EXCHANGE SYSTEMS

A method in an orchestrator computing device includes: detecting a request to obtain updated data from a data source, for storage in a dataset corresponding to the data source; retrieving, from the dataset, a client identifier of the data source; generating a data collection message including (i) an input element to receive the updated data, (ii) a selectable submission element including a network identifier of the orchestrator computing device, and (iii) an authentication token; transmitting the data collection message for delivery to the data source using the client identifier; responsive to (i) entry of the updated data via the input element, and (ii) selection of the submission element at a client computing device associated with the data source, receiving, from the client computing device, the updated data and the authentication token; and updating the dataset to include the updated data.