Use DeleteOrganizationalUnit com um AWS SDK ou CLI

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

    /// <summary>
    /// Shows how to delete an existing AWS Organizations organizational unit.
    /// </summary>
    public class DeleteOrganizationalUnit
    {
        /// <summary>
        /// Initializes the Organizations client object and calls
        /// DeleteOrganizationalUnitAsync to delete the organizational unit
        /// with the selected ID.
        /// </summary>
        public static async Task Main()
        {
            // Create the client object using the default account.
            IAmazonOrganizations client = new AmazonOrganizationsClient();

            var orgUnitId = "ou-0000-00000000";

            var request = new DeleteOrganizationalUnitRequest
            {
                OrganizationalUnitId = orgUnitId,
            };

            var response = await client.DeleteOrganizationalUnitAsync(request);

            if (response.HttpStatusCode == System.Net.HttpStatusCode.OK)
            {
                Console.WriteLine($"Successfully deleted the organizational unit with ID: {orgUnitId}.");
            }
            else
            {
                Console.WriteLine($"Could not delete the organizational unit with ID: {orgUnitId}.");
            }
        }
    }

Como excluir uma UO

O exemplo a seguir mostra como excluir uma UO. O exemplo pressupõe que você removeu anteriormente todas as contas e outras OUs da OU:

aws organizations delete-organizational-unit --organizational-unit-id ou-examplerootid111-exampleouid111