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SAAS

Multi-Tenant CRM Schema

A worked saas example, rendered live. Open it in the AI editor and adapt it to your own case.

UPDATED 2026-07-30
TYPEErd
USE-CASEMulti Tenant Crm
EXAMPLEMulti-Tenant CRM Schema
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CASE ANALYSIS

Scenario

A SaaS startup builds a multi-tenant CRM where each tenant’s data is logically separated within a shared database schema by a tenant_id foreign key in every table.

Key decisions

  • All tables include a tenant_id FK to Tenant to enforce data isolation at the application level.
  • Users, contacts, leads, deals, and activities are scoped per tenant.
  • Relationships are defined with mandatory foreign keys and many-to-one cardinalities.

When to reuse this

Use this pattern when building a multi-tenant SaaS application where simplicity and resource efficiency outweigh strict physical data isolation, and row-level security is managed in the application layer.

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