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n8n workflow automation – self-hosted and GDPR-ready
250+ projects · 5.0 on Google · 100% in Germany

n8n workflows: open source, self-hosted, full data control

For mid-sized companies: API orchestration between ERP, CRM and SaaS—without vendor lock-in – delivery and project ownership from Germany (Leer/East Frisia), named contacts, no offshore guesswork.

  • 250+ delivered projects
  • 5.0 stars on Google
  • 100% engineering in Germany

We implement self-hosted n8n on your infrastructure or German cloud: webhook-driven workflows, ERP/CRM hooks, error handling and monitoring—ideal for GDPR-sensitive processes without mandatory US hosting.

Self-hosted·Open source·Webhooks·API orchestrationMade in Germany

n8n connects systems via APIs and webhooks—deployable on-premise with full control over data flows.

n8n for API-first automation and GDPR sensitivity

n8n is an open-source workflow platform with a visual editor and 400+ integrations. Unlike pure SaaS tools such as Zapier, n8n can run self-hosted—data stays in your controlled environment and DPA/retention stay manageable.

Typical scenarios: lead routing from web forms to CRM, bidirectional ERP–shop sync, event-driven Slack/Teams messages, light ETL between databases or AI steps via HTTP nodes to internal LLM endpoints.

We combine n8n with custom code nodes (JavaScript/Python), queue handling and retry strategies so workflows are production-grade, not demos.

Our services at a glance

Self-hosted setup

Install on VM, Kubernetes or Docker with backup, TLS and HA options.

Workflow design

Modular flows with error workflows, dead-letter queues and idempotent API calls.

ERP & CRM

Odoo, SAP, DATEV context, HubSpot, Salesforce—via REST, OData or database nodes.

Webhooks & events

Real-time triggers from shops, forms, monitoring or message queues.

Security & GDPR

Credential vault, network segmentation, logging without personal data leaks.

Operations & updates

Version upgrades, workflow exports in Git and runbooks for your IT team.

n8n vs Zapier/Make: when self-hosting wins

SaaS automation starts fast but data flows through US clouds and task limits get expensive. Self-hosted n8n fits when personal or business-critical data is processed, task volume is high or custom logic is required.

We advise vendor-neutrally: n8n for control and scale, Make or Power Automate when low-code in business units is the priority.

n8n project in 4 steps

1

Architecture

Hosting, network, credentials and monitoring concept.

2

Pilot workflow

One end-to-end flow with measurable benefit and error handling.

3

Integration

Connect more systems, Git export and CI for workflows.

4

Operations

SLA, alerting and training for extensions by your team.

Björn Groenewold
„With self-hosted n8n, mid-market firms keep data sovereignty and scale task volume without Zapier bill shock—when operations and updates are professionalised.“
Björn GroenewoldDipl. Inf.Managing Director & CTO

Operate n8n – don’t just install it

An n8n instance without backup, monitoring and versioning becomes a single point of failure fast. We deliver runbooks, Git sync for workflows and clear ownership between IT and business.

Also: /en/services/api-integration for APIs n8n can call reliably.

  • Self-hosted in DE/EU
  • Webhook and API orchestration
  • Error workflows & retries
  • Odoo, CRM, shop integration
  • GDPR-aligned architecture

Costs: /en/costs/automation.

Frequently asked questions

FAQ: n8n workflows

Operations, security and cost

n8n Cloud or self-hosted?

n8n Cloud starts fast; self-hosted gives full data control and predictable cost at high volume. For GDPR-critical processes we recommend self-hosted on German infrastructure with compliant hosting.

What does n8n implementation cost?

Setup and first production workflow often from €5,000–12,000; multiple integrations and HA accordingly higher. Ongoing: hosting and maintenance instead of per-task SaaS fees.

Which systems can n8n connect?

Practically anything with REST, webhooks or email: Odoo, HubSpot, Shopify, PostgreSQL, Slack, Microsoft 365, finance middleware. Missing connectors we build as HTTP nodes or custom functions—without vendor lock-in.

Integration, error handling and operations

How do we handle errors and retries in n8n?

Error workflows, exponential backoff, dead-letter queues and alerting (email, Teams, PagerDuty). Critical processes get idempotency and manual approval steps. We document runbooks for your ops team.

Do we need developers for n8n maintenance?

Simple flows can be maintained by business teams with training. Complex integrations, credential rotation and HA operations should sit with IT or us. We offer enablement plus optional retainer—scaled to maturity.

n8n vs Make vs Power Automate – when n8n?

n8n when self-hosting, GDPR control and complex API orchestration matter. Make/Power Automate for fast citizen-developer entry in SaaS ecosystems. We recommend by privacy, volume and team—not hype.

n8n Workflows: How we run your project

Request an n8n project

We outline hosting, first workflow and operating model in one call.

Björn Groenewold

Up to 50% of your investment via BAFA/KfW

Use our funding calculator to see which government grants may apply to your project.

Björn Groenewold – Managing Director

Service cluster

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n8n Workflows: Self-Hosted Automation | Groenewold IT Solutions