createShippingLabels method does not Generate RDT

[da-mask]

Problem description:

calls to createShippingLables on on VendorDirectFulfilmentShippingV20211228Api result in Forbidden 403.

Error:

[reasonPhrase:GuzzleHttp\Psr7\Response:private] => Forbidden
[statusCode:GuzzleHttp\Psr7\Response:private] => 403

Code

$orderDetails = $this->service->order->getOrderDetails();
$selling_party = $orderDetails->getSellingParty();
$ship_from_party = $orderDetails->getShipFromParty();
$body = new CreateShippingLabelsRequest([
	'selling_party' => new PartyIdentification(['party_id' => $selling_party->getPartyId()]),
	'ship_from_party' => new PartyIdentification(['party_id' => $ship_from_party->getPartyId()]),
]);
return $this->api->createShippingLabels($this->service->order->getPurchaseOrderNumber(), $body);

Seller Central SP API config page screenshot

[jlevers]

This should be fixed in v6.