Oracle Fusion SCM provides SOAP APIs, which are a standard protocol for exchanging information in the implementation of Web Services. They are used for various operations such as creating, reading, updating, and deleting (CRUD operations) on data within the Oracle Fusion SCM system.

The general steps to use these SOAP APIs are:

1. Access the WSDL (Web Services Description Language) file: This is usually hosted on the Oracle Fusion instance and contains information about what operations are available, what inputs they require, and what output they will return.

2. Set up a SOAP client: This could be a programming library or tool that can generate and parse SOAP requests and responses. Many programming languages have libraries for this, like the suds library for Python or the JAX-WS library for Java.

3. Format the SOAP request: Using information from the WSDL file, create a SOAP request with the necessary headers and body content.

4. Send the SOAP request: This is done via an HTTP POST to the endpoint specified in the WSDL file.

5. Parse the SOAP response: After sending the request, you will receive a SOAP response back. This should be parsed to extract the data you need.

Authentication is usually required when interacting with Oracle Fusion SCM SOAP APIs. This may involve sending a username and password or other authentication tokens along with your SOAP request.