SaaS tenancy basics

“Multi-tenant” is often used loosely. In practice, it means deciding how customer data and workloads share infrastructure—and how you keep those boundaries clear as you grow.

Decide what a tenant is

Is a tenant a company, a workspace, or a billing account? Pick a definition early. Ambiguity here shows up later as messy access control and confusing support tickets.

Choose isolation intentionally

Shared databases with tenant keys, separate schemas, or separate accounts each trade cost against isolation. There is no universal best choice—only a fit for your risk, scale, and team.

Identity and admin paths

Plan how users authenticate and how your team (or theirs) administers a tenant. Least privilege for support access matters as much as customer-facing login.

What this is not

These notes are introductory. Compliance, industry rules, and your product model may require more. We do not claim one tenancy pattern is always correct.

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