First install and enable AzureADCron.
Start at your ILIAS root directorybash mkdir -p Customizing/global/plugins/Services/Cron/CronHook cd Customizing/global/plugins/Services/Cron/CronHook git clone https://gitblit.minervis.com/summary/GZ/AzureADCron.git AzureADCron
Update and activate the plugin in the ILIAS Plugin Administration