This presentation was recorded prior to re:Invent. Migrating an existing single-tenant solution to a multi-tenant SaaS model can be challenging. Finding a migration approach that balances the ongoing needs of the business with the market, cost, and competitive pressures of getting to SaaS often requires teams to identify creative migration strategies. In this session, we explore common SaaS migration patterns and dive deep into the specific architecture, operational, deployment, and build strategies that are used to implement these patterns. We review a range of options that span from minimally invasive to a complete rewrite, highlighting the challenges, advantages, and demands of each of these approaches.