I use Tapiriik (tapiriik.com) to automatically sync my swims, runs and rides across multiple services. This recipe will send an IF notification when a new activity is uploaded to Dropbox, indicating the sync is complete and Tapiriik has done its job. Dropbox sync needs to be enabled at tapiriik.com.
If
New file in your folder
This Trigger fires every time any file is saved in the folder you specify. NOTE: will process up to 15 files per polling period.
Then
Send a notification from the IFTTT app
This action will send a notification to your devices from the IFTTT app.
Explore more great ways to automate Notifications and Dropbox