如何使用ADDS（Active Directory域服务）同步查询已同步到Azure的租户Active Directory组织单位（OU）？
根据：https://azure.microsoft.com/en-us/documentation/articles/active-directory-ds-admin-guide-create-ou/
Warning:
User accounts, groups, service accounts and computer objects that you create under
custom OUs will not be available in your Azure AD tenant. In other words, these
objects will not show up using the Azure AD Graph API or in the Azure AD UI. These
objects will only be available in your Azure AD Domain Services managed domain.
那么，这只是一个“不可能”的单位吗？或者还有另一种方式吗？是否可以使用除Graph之外的其他Microsoft API？