Step 4. Specify IAM Role
[This step is available if, on the Veeam Backup for AWS appliance, you have multiple IAM roles that belong to the AWS account selected at the Account step of the wizard.]
At the IAM Identity step of the wizard, select an IAM role that will be used to create the repository. This role must have permissions described in the Repository IAM Role Permissions section in the Veeam Backup for AWS User Guide.