**To create an OU in a root or parent OU** The following example shows how to create an OU that is named AccountingOU: :: aws organizations create-organizational-unit --parent-id r-examplerootid111 --name AccountingOU The output includes an organizationalUnit object with details about the new OU: :: { "OrganizationalUnit": { "Id": "ou-examplerootid111-exampleouid111", "Arn": "arn:aws:organizations::111111111111:ou/o-exampleorgid/ou-examplerootid111-exampleouid111", "Name": "AccountingOU" } }