While provisioning the apigee eval org, and configuring the external access, getting below error:
In Access routing step the error “Invalid value for field ‘resource.network’”, Hence couldn’t create enable apigee from console.
Welcome to the Apigee Community @Pioneer_Blr, It’s great to see a new face here 
I wanted to acknowledge your question, while we wait for our community to jump in with their insights, I recommend browsing our Knowledge Hub for any related guides from Googlers. We’re excited to have you as part of the community!
Hi,
I assume that the provisioning wizard is used to provision an eval org with VPC peering, is that correct? The invalid value for field ‘resource.network’ error usually happens because the provisioning wizard can’t properly validate or see the VPC network you’ve selected. Most of the time, this is caused by the Service Networking API being disabled, which prevents the connection between the managed services and your network from being established. It can also be a simple formatting issue; the system often requires the full resource URI (the long path including the project ID) rather than just the short name of the network. To fix it, double-check that the API is enabled, ensure the VPC is in the same project as your evaluation organization, and make sure you have the proper network permissions to link the two together.
Best regards,
Maria