Multi-Tenant SaaS Architecture

Acknowledgement: Shared by Peter Bamuhigire, techguypeter.com, +256 784 464178.

Use When

• Designing tenancy for a new SaaS, or hardening an existing SaaS against cross-tenant leakage.
• Splitting a SaaS into three panels (super admin, tenant/franchise admin, end user) with distinct scopes.
• Designing per-tenant role overrides, permission priority ordering, and audit trails for privileged access.
• Planning the session, JWT, and tenant_id plumbing that downstream database, API, security, and delivery skills rely on.

Do Not Use When

• The task is a single-tenant app with no plan for tenancy — this skill's constraints add overhead with no benefit.
• The work is about business-module composition rather than tenant boundaries — use modular-saas-architecture.
• The work is pure schema shaping inside an already-defined tenant model — use database-design-engineering and mysql-best-practices.

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