ext_localconf.php

<?php

// Register handler calls for Scheduler
use Cobweb\ExternalImport\Task\AutomatedSyncAdditionalFieldProvider;
use Cobweb\ExternalImport\Task\AutomatedSyncTask;
use TYPO3\CMS\Core\Utility\ArrayUtility;
use TYPO3\CMS\Scheduler\Task\TableGarbageCollectionTask;

$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['scheduler']['tasks'][AutomatedSyncTask::class] = [
    'extension' => 'external_import',
    'title' => 'LLL:EXT:external_import/Resources/Private/Language/ExternalImport.xlf:scheduler.title',
    'description' => 'LLL:EXT:external_import/Resources/Private/Language/ExternalImport.xlf:scheduler.description',
    'additionalFields' => AutomatedSyncAdditionalFieldProvider::class,
];

// Set up garbage collection
if (!is_array($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['scheduler']['tasks'][TableGarbageCollectionTask::class]['options']['tables']['tx_externalimport_domain_model_log'] ?? null)) {
    $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['scheduler']['tasks'][TableGarbageCollectionTask::class]['options']['tables']['tx_externalimport_domain_model_log'] = [
        'dateField' => 'crdate',
        'expirePeriod' => 180,
    ];
}

// Add custom permission options for the backend module
ArrayUtility::mergeRecursiveWithOverrule(
    $GLOBALS['TYPO3_CONF_VARS']['BE']['customPermOptions'],
    [
        'tx_externalimport_bemodule_actions' => [
            'header' => 'LLL:EXT:external_import/Resources/Private/Language/ExternalImport.xlf:bemodulePermissions',
            'items' => [
                'sync' => [
                    'LLL:EXT:external_import/Resources/Private/Language/ExternalImport.xlf:bemodulePermissions.runSync',
                    'actions-refresh',
                    'LLL:EXT:external_import/Resources/Private/Language/ExternalImport.xlf:bemodulePermissions.runSync.description',
                ],
                'scheduler' => [
                    'LLL:EXT:external_import/Resources/Private/Language/ExternalImport.xlf:bemodulePermissions.scheduler',
                    'mimetypes-x-tx_scheduler_task_group',
                    'LLL:EXT:external_import/Resources/Private/Language/ExternalImport.xlf:bemodulePermissions.scheduler.description',
                ],
            ],
        ],
    ]
);