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Once you've assigned a title, if you return to the System page and scroll down, you'll see the System's package selections listed.
The process to push the title application to the machine has several components. First, after several seconds, if you refresh the page you'll see an External Event showing the action.
And finally after a few more minutes of processing, as OttoMate takes action in SCCM to speed the deployment, you'll receive a direct Slack message informing you that it's complete. If the system is healthy, powered on, and on the network, it will receive the package moments after this final message. Of course, running processes and other factors may effect and/or delay the installation.
You'll receive toast notifications in Otto periodically as the process proceeds.