Hello @ravinder reddy
We kindly request that you associate the service with a Network Security Perimeter. This will implicitly allow inbound and outbound access to any other service that is associated with the same Network Security Perimeter.
When access is authenticated using managed identities and role assignments, access rules are not required. However, access rules need to be created when allowing access outside of the Network Security Perimeter, or for access that is authenticated using API keys.
Please refer below document for more information.
Refer: https://learn.microsoft.com/en-us/azure/private-link/create-network-security-perimeter-portal
I hope this information helps to you and let me know if you have any further questions, we will be happy to help you.