PrivateLinks offers a secure method to connect resources within a virtual private cloud (VPC) to various services, including Enterprise Aura instances.

Often, users opt to utilize distinct VPCs to segregate production, staging and testing environments. Within each VPC, users can create a PrivateLink endpoint, facilitating connectivity to the same Aura PrivateLink Endpoint Service.

You can refer to the diagram of How to Connecting Multiple Application VPCs to a single Aura Private Service In The Same Cloud Region.
Below shows a diagram of the overall architecture of this feature:


For more information around how to enable this please see the following article: