Templates/Multi-tenant SaaS ERP

Multi-tenant SaaS ERP

EnterpriseAdvancedEnterprise SaaS

Multi-tenant ERP platform with per-tenant schema isolation, shared API gateway, RBAC via Redis cache, and batch worker for reports and reconciliation. Use for B2B SaaS platforms.

Recommended for: B2B platforms with strict tenant isolation

8 nodes8 connectionsTenant context routingSchema isolationBatch reporting

Use Case

B2B SaaS platforms, accounting systems, HR tools, inventory management across organizations

Best Fit Scenarios

  • Finance and operations SaaS
  • Per-tenant compliance boundaries
  • Heavy report generation workloads

Stack Breakdown

ReactAPI GatewayPostgreSQLRedisS3

Architecture Layers

1Tenant Dashboard
2API Gateway (tenant routing)
3Domain Services
4Data Isolation Layer
5Storage & Reports

Components by Category

frontend

Dashboard

backend

API GatewayTenant ServiceCore ERP

async

Batch Worker

database

PostgreSQLRedis

infra

S3

Why This Topology Works

Tenant context is resolved at the gateway, ensuring schema-level isolation in PostgreSQL. Batch workers run per-tenant reports off read replicas without impacting live traffic.

Scaling Notes

Per-tenant schema keeps data isolated. Redis caches RBAC decisions. Batch workers auto-scale based on report queue depth. S3 stores generated PDFs.

Observability

Track queries per tenant, batch job duration, cache hit rates. Alert on schema drift between tenants.

Typical Bottlenecks

  • Frontend rendering and bundle delivery under peak traffic
  • Service latency and timeout behavior on critical routes
  • Queue lag, retry storms, and DLQ growth during incidents

Async Flow and Reliability

User-facing operations remain synchronous while long-running work moves through queues or streams. Workers consume jobs independently with retry and failure isolation, improving resilience under burst load.

Upgrade Path

Harden each domain with clear ownership, enforce SLO budgets, and adopt multi-region or active-passive failover where downtime costs are high.

Operating Envelope

Complexity is marked as Advanced with an intended scope of Enterprise SaaS. Use this as a planning baseline before adapting the template to your reliability and team constraints.