E-sourcing applications enable organizations to organize, solicit and evaluate requests for information (RFIs) and requests for proposals (RFPs) from suppliers. These applications enable competitive bidding where the outcome is typically a long-term agreement. Most e-sourcing applications also support reverse auction capabilities. Some applications enable large-scale complex bid events with thousands of line items and awards spanning multiple suppliers.
Gartner defines the source-to-pay (S2P) suite market as an integrated set of solutions to source, contract, request, procure, receive and pay for goods and services across an enterprise. These solutions typically are sold as cloud-based software as a service. Source-to-pay suites allow organizations to manage all of their sourcing and procurement activities within a single integrated solution. These solutions are modular in nature, allowing customers to activate/implement the functionality that is relevant for their needs, and are ERP/financial-system-agnostic. The integrated nature of these solutions allows for data to easily flow across the source-to-pay process, providing needed visibility to upstream and downstream information. For example, users can view a purchase order alongside its related contract, the sourcing event that led to the contract, and connected downstream documents like receipts, invoices and payments.