According to the present invention, there is provided a method to facilitate propagating a plurality of transaction listings to a network-based transaction facility. An input interface is presented at a seller application to receive from a user, a plurality of transaction listings, each transaction listing including an associated start time. Also, a data file is composed at the seller application to include the plurality of transaction listings. Moreover, the data file is propagated, using the seller application, from the client computer to the network-based transaction facility.