This AWS re:Invent 2023 session explores DevOps strategies for SaaS environments with multi-tenant architectures. The presenters, Anubhav Sharma and Alex from the SaaS Factory team, discuss automation best practices for provisioning, configuring, and deploying resources based on tenant profiles. They provide two concrete examples: one using Argo Workflows, Terraform, Helm, and Flux v2 for container-based environments, and another using AWS CodePipeline, AWS Step Functions, and AWS CloudFormation for serverless environments. The session covers challenges in automating SaaS workflows, including handling different tiers of tenants, maintaining a single codebase, and implementing staggered deployments. Key takeaways include the importance of automation for SaaS agility, designing workflows based on tiering models, and maintaining a single software version across all tiers. The presenters also highlight additional resources and workshops for building SaaS solutions on AWS.