1. A system, comprising: one or more processors configured to: send a transaction status information query request corresponding to a contact person associated with an instant messaging client, wherein the transaction status information query request is associated with a user with respect to the contact person, wherein the user is associated with the instant messaging client; and receive transaction status information determined based at least in part on the transaction status information query request corresponding to the contact person, wherein the transaction status information describes a current stage in a fulfillment process of an order; and one or more memories coupled to the one or more processors and configured to provide instructions to the one or more processors.