I have about 12 SharePoint apps (or add-ins) that I need to migrate over to 2016, but whenever following the steps below, I'm not seeing the app webs, nor the ability to add any apps to an existing page.
- Create App catalog
- Upload/Install all 2013 apps
- Backup ContentDB, App Management and Subscription databases from 2013 SQL
- Restore in 2016 SQL
- Create new App Management and Subscription Service Applications using the restored service DB names.
- Mount 2013 content database to the web application.
- Create App Web URL
Note that the web application URL and the App URLs are different only because we are doing a test to production model. 2013 is still in production at the moment. So 2013 (prod) has, let's say
app.appdomain.com, and 2016 has
Currently none of the app parts are showing, the apps are seen in the "View all Site Content", but you can't upgrade them, and you can't browse to their app webs, and when adding a new app they aren't shown.
Also...where is the microsoft documentation for migrating apps?