Here’s an overview:

1. Identifying Integration Needs: First, define the scope and requirements of the data integration. This includes understanding the type of data to be integrated, the frequency of integration, the direction (unidirectional or bidirectional), and security considerations.

2. Selecting Integration Tools: Oracle provides several tools and services designed to facilitate integration with external systems, such as Oracle Integration Cloud (OIC), Oracle Data Integrator (ODI), and Oracle GoldenGate. Your selection should depend on your specific needs and requirements.

3. Designing the Integration: This involves mapping the data between the Oracle ERP Cloud and the external system. You may need to transform the data into a format that is compatible with Oracle ERP Cloud.

4. Implementing the Integration: Utilizing the selected tools, you’ll need to configure the connections, design the transformations, and define the workflows. Testing should be done in stages to ensure accuracy and performance.

5. Monitoring and Managing the Integration: After going live, continuous monitoring and management are crucial to ensure the smooth operation of the integration. This includes tracking performance, handling errors, and managing security.

6. Compliance and Security: Ensuring that the integration meets all regulatory and security requirements is vital. This may include encryption, authentication, and adherence to data privacy regulations.

7. Working with Partners: Depending on the complexity of the integration, you might consider working with Oracle partners or third-party vendors specializing in integration services.

8. Documentation and Support: Thorough documentation of the integration process and setup should be maintained, and establishing support mechanisms will help in the event of any issues or changes in the future.

Remember that integrating external data into Oracle ERP Cloud requires a strategic approach and a clear understanding of both the technical and business aspects of the project. It’s advisable to consult with Oracle support or specialized integration experts if you have specific or complex needs.