This document provides guidance for suppliers on implementing PunchOut integration with Ariba's procurement platform. It covers the key steps in the process: planning, design, development, testing, and deployment. The planning stage involves analyzing current and future states as well as determining whether to outsource or handle development internally. The design stage focuses on requirements specific to the supplier, buyer, and PunchOut process. Development includes building out the message flows and transactions. Thorough testing is recommended at multiple stages. Finally, the guide outlines deploying the integrated PunchOut site.