You must allocate resources to machines by creating a reservation before members of a business group can request machine provisioning.
You can work with Amazon reservations for Amazon Virtual Private Cloud or Amazon non-VPC. Amazon Web Services users can create a Amazon Virtual Private Cloud to design a virtual network topology according to your specifications. If you plan to use Amazon VPC, you must assign an Amazon VPC to a vRealize Automation reservation. See Using Amazon Virtual Private Cloud.
When you create an Amazon reservation or configure a machine component in the blueprint, you can choose from the list of security groups that are available to the specified Amazon region. Security groups are imported during data collection.
After you create a reservation, you cannot change the business group or compute resource associations.
For information about creating an Amazon VPC by using the AWS Management Console, see Amazon Web Services documentation.