How Do I Migrate from OIC Gen2 to Integration 3? – A Complete Guide

How Do I Migrate from OIC Gen2 to Integration 3? – A Complete Guide

Introduction

Oracle Integration Cloud is evolving faster than ever, offering organizations a more powerful and modern platform to build, manage, and scale their integrations. With the arrival of Integration 3, enterprises now have access to a redesigned engine, enhanced performance, upgraded adapters, and intelligent monitoring tools that make complex workflows more efficient. As many teams prepare for this transition, professionals often rely on structured learning paths such as OIC Training Online to better understand new capabilities and prepare for real-world migration tasks.

Migrating to Integration 3 is not just a technical upgrade — it represents a shift toward a more optimized, secure, and future-ready integration ecosystem that aligns with modern digital transformation needs.

 

How Do I Migrate from OIC Gen2 to Integration 3? – A Complete Guide

Understanding Integration 3

Integration 3 brings significant enhancements across runtime, security, monitoring, and integration design. Oracle has improved the processing logic to make complex payloads run faster, strengthened support for SaaS applications, and introduced better debugging tools. The interface is cleaner, more intuitive, and tailored for developers who work with large integration libraries.

Integration 3 is built with cloud scalability in mind, meaning it can handle higher transaction volumes and heavier workloads than Gen2. This makes the migration important for businesses experiencing growth in data, applications, and automation requirements.

 

Key Differences Between Gen2 and Integration 3

Several transformative upgrades differentiate the two versions:

• Faster and smarter runtime engine
• Modern UI with streamlined navigation
• Advanced monitoring and logging dashboards
• Better adapter support for Oracle Fusion applications
• Improved scalability for enterprise-grade volumes
• Cleaner mapping canvas and enhanced debugging features

These changes collectively enable a more stable and productive integration environment.

 

Pre-Migration Preparation

A successful migration depends on thorough preparation. Before moving to Integration 3:

• Identify all integrations currently running in Gen2
• Review custom scripts, mappings, and API calls
• Document your existing connection details
• Export certificates, security credentials, and lookup data
• Evaluate dependencies with Fusion, on-prem systems, and REST APIs
• Clean up inactive or deprecated integrations

This groundwork reduces downtime and avoids potential errors during the transition.

 

Step-by-Step Migration Process

1. Export Your Integrations from Gen2

Start by exporting integrations individually or in grouped bundles. Ensure that all referenced assets, including schemas, connections, and lookups, are included in the export.

2. Validate Your Exported Packages

Before importing into Integration 3, verify the exported archives. Check folder structures, mapping files, and dependent schemas to ensure nothing is missing.

3. Import Integrations into Integration 3

Log in to your Integration 3 instance and import the exported .iar packages. Some integrations may require updates because older adapter versions behave differently.

4. Rebuild or Reconfigure Connections

Connections do not migrate automatically. You must recreate them within Integration 3, re-entering credentials, certificates, and security settings. This ensures a secure and functional connection framework.

5. Update Schedule Triggers

Scheduled flows must be manually set up again. Recreate timers and adjust execution intervals as needed.

6. Resolve Compatibility Warnings

After import, review warnings related to deprecated features, custom functions, and adapter behavior changes. This is also the point where many professionals rely on additional learning resources such as Oracle Integration Cloud Course to fully understand required updates.

7. Activate and Test Each Integration

Once all configurations are updated, activate the workflows and validate each one through end-to-end testing.

 

Testing and Validation

Testing is essential to ensuring integrations run smoothly in Integration 3. You should:

• Test each integration independently
• Validate payload formats and mapping
• Confirm that REST/SOAP endpoints respond correctly
• Test connections to external systems
• Review runtime logs for any unexpected behavior

The goal is to ensure that every integration performs exactly as expected before going live.

 

Common Issues During Migration

Adapter Updates

Some older Gen2 adapters require upgrading or replacing with their Integration 3 versions.

Certificate Errors

Security certificates may fail during import and must be re-added manually.

Custom Function Incompatibility

Certain custom scripts behave differently and might require adjustments.

Schedule Failures

Schedules do not transfer and must be reconfigured.

 

Best Practices for a Smooth Migration

• Break the migration into phases instead of migrating everything at once
• Prioritize business-critical integrations
• Update outdated flows instead of blindly copying them
• Keep detailed documentation for every integration
• Use new monitoring dashboards for early performance insights

As teams work through more advanced parts of the migration —many developers gain hands-on experience by participating in programs like OIC Training In Hyderabad, which offer practical exposure to real project scenarios.

 

FAQs

1. Will my integrations work immediately after import?

Most will, but some require adapter updates or schedule reconfigurations.

2. Do I need to migrate everything at once?

No. You can migrate in phases to minimize disruptions.

3. Are there new adapters in Integration 3?

Yes, Integration 3 includes upgraded and additional adapters for Oracle Fusion and modern SaaS systems.

4. Is reconfiguration needed after import?

Yes. Connections, certificates, and schedules need manual updates.

5. Does Oracle provide migration tools?

Oracle offers documentation, guides, and utilities to simplify the process.

 

Conclusion

Migrating from OIC Gen2 to Integration 3 is a strategic step toward improving performance, reliability, and scalability across your enterprise integrations. With the upgraded engine, enhanced UI, and stronger support for automation, Integration 3 delivers a modern and efficient platform for long-term digital initiatives. By preparing carefully, validating each step, and following best practices, organizations can transition smoothly while ensuring their business processes continue to run seamlessly.

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