To help understand how data is being synced you can use the sync activity log to see which bases can currently sync from a specific base, as well as the owners of the synced destinations.
Access from the base share menu
You can view the sync activity log in the “Shared view links” section of the base share menu. Start by clicking the "Share" button at the top-right hand corner of your base. 
This will open the base share menu. Scroll down to the "shared view links" section where you'll be able to select the sync activity log icon.

Access from the shared view links menu
You can also view the sync activity log via the the view share menu. Start by clicking the "Share view" button, and then select the sync activity log icon.

Information available in the sync activity log
Once you open the sync activity log, we’ll show entries for:
- Every sync destination base ordered by the last time it synced
- The most recent password change for the shared view
- The most recent email domain restriction change for the shared view
- The most recent time the shared view link was regenerated
If you have access to the base, we’ll also show you the base name and icon.
