CaddieSync Express is behind-the-scenes software that allows your SkyCaddie to talk with the SkyGolf website.
If you see a button with this blue symbol, this means CaddieSync Express and a SkyCaddie is required.
For example, if you save a round on your SkyCaddie, this round is sent to SkyGolf when you sync. You can then view and manage this round on the SkyGolf website.