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Overview

Courier operates a dedicated European datacenter in AWS EU West 1 (Ireland) to ensure data residency compliance for European customers. You can access the same Courier workspace from both US and EU regions - the difference is where your notification data is stored and processed. EU region operations ensure all customer data remains within European borders for GDPR and regulatory compliance.
EU Datacenter is available for Enterprise customers. Contact Courier Support for access or request a demo to learn more.

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Key Features

Courier’s EU datacenter provides data residency compliance while maintaining full platform functionality:
  • Data Residency Compliance - All notification data stored and processed within EU borders
  • GDPR Compliant - Built-in data protection controls and audit capabilities
  • Same Workspace Access - Use your existing workspace with EU data residency
  • Reduced Latency - Optimized performance for European users and services
  • Full Feature Parity - Complete Courier API functionality available in EU region
  • Easy Migration - Move existing data to EU region without workspace changes

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EU-Specific Endpoints

Access Courier services through dedicated EU endpoints:
  • API Endpoint: https://api.eu.courier.com
  • Dashboard: https://app.eu.courier.com
  • Data Center: AWS EU-West 1 (Ireland)
EU region data access uses the same authentication with region-specific endpoints:
  • Same API Keys - Your existing workspace API keys work with both US and EU endpoints
  • Region-Specific Data - Keys access different data stores depending on the endpoint used
  • Same Key Format - No changes needed to existing key formats (pk_prod_*, pk_test_*, etc.)
  • Single Workspace - Same workspace accessed via different regional endpoints
Data Separation: EU and US endpoints route to different data storage locations. Use EU endpoints to ensure your data remains within European borders.

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Getting Started

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New EU Customers

1

Create Courier Account

Sign up at app.courier.com or app.eu.courier.com to create your workspace.
2

Enable EU Region

Contact Courier Support to enable EU datacenter access for your workspace.
3

Configure API Integration

Use EU endpoints with your workspace API keys for data residency compliance.
# Use EU-specific endpoint
curl https://api.eu.courier.com/send \
  -H "Authorization: Bearer YOUR_API_KEY"
4

Test Integration

Verify your integration works correctly with EU endpoints before deploying to production.

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Migrating from US to EU Region

For existing Courier customers moving to the EU region:
1

Initiate Data Migration

Contact Courier Support to begin migrating your data to the EU region. Our team will replicate your existing data to EU-West 1.
2

Update API Endpoints

Update your integration to use EU-specific endpoints with your existing API keys:
// Before (US region)
const courier = new CourierClient({
  authorizationToken: "YOUR_API_KEY"
});

// After (EU region)  
const courier = new CourierClient({
  authorizationToken: "YOUR_API_KEY", // Same key
  baseUrl: "https://api.eu.courier.com"
});
3

Test EU Region Access

Verify your integration works correctly with EU endpoints using your existing API keys before switching production traffic.
4

Update Custom Domains

If using custom domains, update DNS/CNAME records to point to EU region endpoints.

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Code Examples

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SDK Configuration

Update your SDK configuration to use EU endpoints: 
import { CourierClient } from "@trycourier/courier";

const courier = new CourierClient({
  authorizationToken: process.env.COURIER_API_KEY, // Same key as US region
  baseUrl: "https://api.eu.courier.com"
});

// Send notification through EU region
const { requestId } = await courier.send({
  message: {
    to: { email: "user@example.com" },
    template: "my-template",
    data: { name: "John Doe" }
  }
});

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Environment Configuration

Set up environment variables for EU region:
.env
# Same API key works for both regions
COURIER_API_KEY=pk_prod_your_api_key_here

# EU region configuration
COURIER_EU_BASE_URL=https://api.eu.courier.com

# US region configuration (for comparison)
COURIER_US_BASE_URL=https://api.courier.com

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Implementation Requirements

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Data Residency Configuration

When using the EU region, ensure your integration properly handles data locality: 
// Verify EU region configuration
const courier = new CourierClient({
  authorizationToken: process.env.COURIER_API_KEY, // Same key
  baseUrl: "https://api.eu.courier.com" // Required for EU data residency
});

// All API calls now route to EU infrastructure
const response = await courier.send({...});

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GDPR Compliance Implementation

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User Data Deletion

Handle GDPR deletion requests using the EU region API: 
# Delete user profile and all associated data
curl -X DELETE https://api.eu.courier.com/profiles/{user_id} \
  -H "Authorization: Bearer $COURIER_API_KEY"

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Data Export for Subject Access Requests

Export user data for GDPR access requests: 
# Get complete user profile data
curl https://api.eu.courier.com/profiles/{user_id} \
  -H "Authorization: Bearer $COURIER_API_KEY"

# Get user's message history
curl https://api.eu.courier.com/profiles/{user_id}/lists \
  -H "Authorization: Bearer $COURIER_API_KEY"

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Audit Log Access

Access compliance audit logs through your EU workspace:
  1. Navigate to app.eu.courier.com/logs
  2. Filter by user ID or time range for compliance reporting
  3. Export logs as needed for regulatory audits
Enterprise customers should review compliance documentation at security.courier.com before handling personal data.

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Troubleshooting

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Common Issues

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Authentication Errors

If experiencing authentication failures:
  1. Verify API Key - Ensure you’re using valid workspace API keys
  2. Check Endpoint URL - Confirm requests target api.eu.courier.com
  3. Test Key Format - Verify key format matches expected pattern

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404 Not Found Errors

When receiving 404 errors:
  1. Confirm Data Migration - Verify your data has been migrated to EU region
  2. Check API Endpoints - Ensure all URLs point to EU region
  3. Review Resource IDs - Some resources may exist only in US region if migration is incomplete

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CORS Configuration

For browser-based applications:
  1. Allowlist EU Origins - Ensure https://app.eu.courier.com is allowlisted
  2. Update CORS Settings - Configure CORS for EU-specific domains
  3. Check Preflight Requests - Verify OPTIONS requests work with EU endpoints

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Performance Monitoring

Monitor EU region performance:
  • Status Page - Check status.courier.com for EU-specific incidents
  • Regional Health - Monitor EU region service health and latency
  • API Response Times - Compare performance between regions if needed

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Service Level Agreement

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EU Region SLA

  • Uptime Guarantee - 99.9% uptime SLA for EU region services
  • Incident Response - 24/7 monitoring and response team
  • Regional Failover - Automated failover capabilities within EU region
  • Performance Standards - Sub-200ms response times for EU-based requests

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Next Steps

Contact Support

Get expert assistance with EU region setup and migration

API Reference

Complete API documentation for EU region integration

Workspace Settings

Configure API keys and environment settings for EU region

Compliance Documentation

GDPR compliance and data processing agreements