This IDC Buyer Case Study provides an overview of the finance and accounting BPO deal that WNS signed with Tesco on December 3, 2003. Through this three-year engagement, valued at approximately $25 million over the lifetime of the contract, Tesco transferred to WNS purchase-to-pay (trade payables and corporate payables) and payroll and benefits administration back offices for retail stores in the United Kingdom and Northern Ireland, thereby enabling Tesco to focus on its core competency, retail operations.