Managing membership with organizational units (OUs) for AWS Security Incident Response
AWS Security Incident Response supports membership coverage for individual organizational units (OUs). You can update your membership to cover specific OUs at any time. All accounts within the selected OUs, including accounts under child OUs, will be covered by your membership.
When updating your membership association, updates can be applied for up to 5 OUs at a time. If you wish to make changes to more than 5 OUs, complete association changes in batches of 5 OUs until all updates are completed.
To learn more about making OU changes within your AWS organization, please see Managing organizational units (OUs) with AWS Organizations.