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SaaS · CRM · database design

Multi-Tenant CRM Schema

種類 ERD規格 Chen 1976 / Everest 1976 (crow's foot)エンジン schematex-erd更新日 2026/7/30
Multi-Tenant CRM Schema
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依頼内容

“A multi-tenant CRM schema with Tenant, User, Contact, Lead, Deal, and Activity tables. Users, contacts, leads, deals and activities belong to a tenant, and leads, deals and activities can be assigned to users.”

次はこちらAdd a pipeline table for deal stagesAdd tags for contacts and leads
この図に含まれるもの

図の背後にある意思決定を読み解く。

01

All tables include a tenant_id FK to Tenant to enforce data isolation at the application level.

02

Users, contacts, leads, deals, and activities are scoped per tenant.

03

Relationships are defined with mandatory foreign keys and many-to-one cardinalities.

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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