
Hi @Avian 1 ,
If you accidentally delete an app from the development tenant's tenant-level app catalog, the possibility of recovery depends on the situation.
Here is a step to try to recover:
Check the Recycle Bin: In SharePoint Online, when you delete an app from the App Catalog, it is first moved to the Recycle Bin.
Go to "Site Content" on the App Catalog website, click on the "Recycle Bin" link, and check if you find the deleted app there.
If found, you can restore it from the recycle bin.
If that doesn't work, it may not be possible to restore deleted apps directly.
In this case, you may need to recreate or redeploy the application.
For log monitoring of hosted applications try Azure Application Insights to collect and view relevant logs.
When it comes to monitoring logs for a hosted app, you can utilize Azure Application Insights to collect and view the relevant logs. Azure Application Insights is a cloud service used for monitoring and analyzing application performance. It can be integrated with your hosted app to collect runtime information and log data.
Please note that utilizing Application Insights for log monitoring may require additional configuration and incur costs depending on your usage and subscription plan. You can refer to the Azure documentation for more information on how to set up and use Application Insights for monitoring logs in your hosted app.
Here are some links about Azure Application Insights for your reference:
https://learn.microsoft.com/en-us/azure/azure-monitor/app/app-insights-overview?tabs=net
https://azurelessons.com/azure-application-insights-tutorial/
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Best Regards
Cheng Feng