CBPDocumentService::updateDocumentField

public function updateDocumentField($parameterDocumentType, $arFields)
{
	[$moduleId, $entity, $documentType] = CBPHelper::ParseDocumentId($parameterDocumentType);

	if ($moduleId)
	{
		CModule::IncludeModule($moduleId);
	}

	if (class_exists($entity) && method_exists($entity, 'UpdateDocumentField'))
		return call_user_func_array(array($entity, "UpdateDocumentField"), array($documentType, $arFields));

	return false;
}