Use AttachPolicy with an AWS SDK or CLI

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

    /// <summary>
    /// Shows how to attach an AWS Organizations policy to an organization,
    /// an organizational unit, or an account.
    /// </summary>
    public class AttachPolicy
    {
        /// <summary>
        /// Initializes the Organizations client object and then calls the
        /// AttachPolicyAsync method to attach the policy to the root
        /// organization.
        /// </summary>
        public static async Task Main()
        {
            IAmazonOrganizations client = new AmazonOrganizationsClient();
            var policyId = "p-00000000";
            var targetId = "r-0000";

            var request = new AttachPolicyRequest
            {
                PolicyId = policyId,
                TargetId = targetId,
            };

            var response = await client.AttachPolicyAsync(request);

            if (response.HttpStatusCode == System.Net.HttpStatusCode.OK)
            {
                Console.WriteLine($"Successfully attached Policy ID {policyId} to Target ID: {targetId}.");
            }
            else
            {
                Console.WriteLine("Was not successful in attaching the policy.");
            }
        }
    }

To attach a policy to a root, OU, or account

Example 1

The following example shows how to attach a service control policy (SCP) to an OU:

aws organizations attach-policy
                --policy-id p-examplepolicyid111
                --target-id ou-examplerootid111-exampleouid111

Example 2

The following example shows how to attach a service control policy directly to an account:

aws organizations attach-policy
                --policy-id p-examplepolicyid111
                --target-id 333333333333

def attach_policy(policy_id, target_id, orgs_client):
    """
    Attaches a policy to a target. The target is an organization root, account, or
    organizational unit.

    :param policy_id: The ID of the policy to attach.
    :param target_id: The ID of the resources to attach the policy to.
    :param orgs_client: The Boto3 Organizations client.
    """
    try:
        orgs_client.attach_policy(PolicyId=policy_id, TargetId=target_id)
        logger.info("Attached policy %s to target %s.", policy_id, target_id)
    except ClientError:
        logger.exception(
            "Couldn't attach policy %s to target %s.", policy_id, target_id
        )
        raise