Why doesn't the mailing release status change?

Question

1C-Bitrix

Hello! I'm creating an example mailing list:

$arFields = array( 
  'STATUS' => 'D', 
  'BCC_TO_SEND' => "[email protected]", 
  'FROM_FIELD' => "[email protected]",
  'SUBJECT' => 'Тема сообщения', 
  'BODY_TYPE' => 'text', 
  'BODY' => 'Тело сообщения', 
  'RUB_ID' => 1, 
  'DIRECT_SEND' => 'Y', 
  'CHARSET' => 'UTF-8', 
); 

$posting = new CPosting; 
 
$ID = $posting->Add($arFields); 
if ($ID) {
   $posting ->ChangeStatus($ID, "P");
   $posting->AutoSend($ID);
}

The issue is created correctly, but it remains in the "Draft" status. Accordingly, there is no sending. What could be the problem?