https://fortinetcloudcse.github.io/fortigate-aws-tgwconnect-active-active-terraform/2_prerequisites/index.htmlBefore attempting to create a stack with the templates, a few prerequisites should be checked to ensure a successful deployment: An AMI subscription must be active for the FortiGate license type being used in the template. Intel BYOL Marketplace Listing Intel PAYG Marketplace Listing ARM BYOL Marketplace Listing ARM PAYG Marketplace Listing The solution requires 2 EIPs to be created so ensure the AWS region being used has available capacity. Reference AWS Documentation for more information on EC2 resource limits and how to request increases.Hugoen-US