Add Multiple AWS accounts via CloudFormation

When you click the AWS CloudFormation Guide, a pop up page will re-direct to you to Amazon Cloud Formation, please follow the steps below to create stack set. If you got re-directed to CloudFormation Stack page, not CloudFormation guide, please refer to Stack Already Exists Error.

AWS Cloudformation Configuration

1. Click StackSets from the CloudFormation menu.



2. Click Create StackSet to go through CloudFormation guide.
3. In Choose a template page, go to Permissions, under IAM execution role name, make sure AWSCloudFormationStackSetExecutionRole is selected in, then click Next.



4. In Prerequisite - Prepare template, make sure Template is ready is selected.
5. In Specify template section, enter the template Amazon S3 URL provided by FortiCNP add account page, then click Next.



6. In Specify StackSet details page, go to StackSet name section, enter "FortiCNPMultiple" for StackSet name, then click Next.



7. Click Next again in Configure StackSet options page.
8. In Set deployment options page, under Account > Deployment locations, make sure Deploy stacks in accounts is selected, and enter the account numbers submitted earlier along with any other target account numbers separated by comma (,) or upload a .csv file. (In the CSV file, separate account numbers using commas as delimiters, e.g., 123456, 234567, etc.)
9. Click on drop the down menu in Specify regions to select any region, then click Next.
10. Review all parameters entered earlier and click Submit. Wait until the FortiCNPMultiple StackSet is fully generated.
11. Go back to FortiCNP add account page and click Next Step

If there is an error after completing Amazon CloudFormation, please refer to Troubleshooting > Amazon Web Service > Stack Already Exists Error.