Set up a custom cron job and cron group
These topics discuss how to set up a custom cron job and optionally a custom cron group. If your Magento extension requires scheduled tasks to run periodically, you can use these topics to set up a cron job (the scheduled task) and optionally a cron group (which runs custom tasks at the same time).
If you use a Magento-provided cron group, you don’t have to define a custom cron group; however, if you want your cron jobs to run at a different schedule or you want them all to run together, you should define a cron group
The Magento application provides the following cron groups:
default, which contains most cron jobsindex, which refreshes indexers- These topics are available in Magento Commerce only
staging, which runs Staging-related taskscatalog_event, which runs tasks for target and shopping cart rules
See the following topics for details:
