public function getAutomationStatusType()
    {
        $automationOrderStatusCollection = $this->addFieldToFilter(
            'enrolment_status',
            \Dotdigitalgroup\Email\Model\Sync\Automation::AUTOMATION_STATUS_PENDING
        );
        $automationOrderStatusCollection
            ->addFieldToFilter(
                'automation_type',
                ['like' => '%' . \Dotdigitalgroup\Email\Model\Sync\Automation::ORDER_STATUS_AUTOMATION . '%']
            )->getSelect()
            ->group('automation_type');

        return $automationOrderStatusCollection->getColumnValues('automation_type');
    }