The Multi-Tenant SaaS Architecture Checklist.

The decisions you can't cheaply undo six months later — written from shipping multi-tenant platforms across the Gulf, the US and the UK.

• Tenancy model, identity and role structure
• Billing-aware data modelling
• Server-authoritative real-time concurrency
• Integrations, webhooks and failure isolation
• Delivery, migrations and the day-two runbook

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