Multi-tenant SaaS architecture on Azure using Front Door, API Management, and App Service with isolated tenant data subnets. Users authenticate via Azure AD and route through Azure Front Door with WAF protection to Web App and Tenant API services. Each tenant maintains isolated SQL databases, Redis caches, storage accounts, and app configurations across dedicated data subnets, while core tenant metadata resides in a shared SQL DB. Comprehensive monitoring via Application Insights and Log Analytics provides visibility across all tenant operations and application health. This architecture demonstrates Azure best practices for tenant isolation, security, and scalability in multi-tenant environments. Fork this diagram on Diagrams.so to customize subnet ranges, add additional services, or adapt for your specific tenant isolation requirements.