Use CreateAccount with an AWS SDK or CLI

    using System;
    using System.Threading.Tasks;
    using Amazon.Organizations;
    using Amazon.Organizations.Model;

    /// <summary>
    /// Creates a new AWS Organizations account.
    /// </summary>
    public class CreateAccount
    {
        /// <summary>
        /// Initializes an Organizations client object and uses it to create
        /// the new account with the name specified in accountName.
        /// </summary>
        public static async Task Main()
        {
            IAmazonOrganizations client = new AmazonOrganizationsClient();
            var accountName = "ExampleAccount";
            var email = "someone@example.com";

            var request = new CreateAccountRequest
            {
                AccountName = accountName,
                Email = email,
            };

            var response = await client.CreateAccountAsync(request);
            var status = response.CreateAccountStatus;

            Console.WriteLine($"The staus of {status.AccountName} is {status.State}.");
        }
    }

To create a member account that is automatically part of the organization

The following example shows how to create a member account in an organization. The member account is configured with the name Production Account and the email address of susan@example.com. Organizations automatically creates an IAM role using the default name of OrganizationAccountAccessRole because the roleName parameter is not specified. Also, the setting that allows IAM users or roles with sufficient permissions to access account billing data is set to the default value of ALLOW because the IamUserAccessToBilling parameter is not specified. Organizations automatically sends Susan a "Welcome to AWS" email:

aws organizations create-account --email susan@example.com --account-name "Production Account"

The output includes a request object that shows that the status is now IN_PROGRESS:

{
        "CreateAccountStatus": {
                "State": "IN_PROGRESS",
                "Id": "car-examplecreateaccountrequestid111"
        }
}

You can later query the current status of the request by providing the Id response value to the describe-create-account-status command as the value for the create-account-request-id parameter.

For more information, see Creating an AWS Account in Your Organization in the AWS Organizations Users Guide.