Stack Already Exists error
Background
After completing all the steps in CloudFormation guide, "Stack already exists" error appeared preventing the setup to complete. This error indicated that the account was installed in FortiCWP before, and there is already a stack created on the account.
Solution
- Log into your AWS account.
- Click Services and search "CloudFormation".
- Under Stacks, delete the stack named "FortiCWP".
- Go back to AWS Authentication, and repeat the steps choosing CloudFormation guide. CloudFormation guide will complete with no error.