Allowlisting is required to specify allowable access destinations on the public internet. There are networking scenarios documented in detail in Chapter 8: Network Integration Guidelines for Integrating Oracle Utilities Cloud Services with External Applications

IP Allowlists enable customers to control how data flows into or out of their SaaS environments.

Outbound traffic is controlled via allowlist of IP addresses. Only HTTPS traffic is allowed to port 443.

To configure IP allowlists, customers must log a service request and follow the steps outlined in the Cloud Operations section of the Oracle Utilities Cloud Services Administration Guide to provide configuration details.