At this time, the following item types not supported in Backup My Org:
Business Analyst App
Supported Types with Exceptions
Map Services with their source will be able to be backed up and restored. If a source is not available on the backup, the Map Service will only be backed up as a registered service with restoration to a link to the original Map Service.
Due to the ArcGIS REST API, Map Services cannot be overwritten, so all restore operations will create a new Map Service.
If a web experience contains widgets not present in the destination environment, the restore will fail.
If the ArcGIS version of the backed up Web Experience and the Destination Environment do not match, a warning message will be shown in the restore preprocessing stage. This is because the data structure of web experience configurations has changed between versions, which may cause a number of issues ranging from format changes to feature services not displaying.
For more information about Backup My Org, including supported items and system requirements, please see our product page.