The Postal Service uses an electronic sourcing solution to enhance and streamline the competitive sourcing practices. eSourcing is a commercial-off-the-shelf (COTS) software solution that supports electronic supplier registration, requests for information (RFIs), requests for proposal (RFPs), requests for quotes (RFQs), reverse auctions, and combinatorial optimization events.

In 2012, more than 10,000 suppliers had registered via eSourcing and were eligible to be invited to bid on competitive solicitations. Suppliers were encouraged to register through the Re: Supply newsletter, CO communications, FedBizOps, and supplier outreach events.

The eSourcing solution helps the Postal Service and suppliers streamline the competitive sourcing process by combining the proposal and evaluation process into one solution. This significantly reduces the time between activities that are often seen in the traditional paper-based proposal process.