<p>Lists the accounts in an organization that are contained by the specified target root or organizational unit (OU). If you specify the root, you get a list of all the accounts that aren't in any OU. If you specify an OU, you get a list of all the accounts in only that OU and not in any child OUs. To get a list of all accounts in the organization, use the <a>ListAccounts</a> operation.</p> <note> <p>Always check the <code>NextToken</code> response parameter for a <code>null</code> value when calling a <code>List*</code> operation. These operations can occasionally return an empty set of results even when there are more results available. The <code>NextToken</code> response parameter value is <code>null</code> <i>only</i> when there are no more results to display.</p> </note> <p>This operation can be called only from the organization's management account or by a member account that is a delegated administrator for an Amazon Web Services service.</p>

{
  "success": true,
  "data": {
    "id": "abc123",
    "created_at": "2025-01-01T00:00:00Z"
  }
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request parameters"
  }
}