You need Xbox SDK installed and configured to use Save Game Pro Xbox Cloud integration, so check out the below links to get started:
- A good guide about installing Xbox integration on Unity: Get started developing an Xbox Live Creators Program title with the Unity game engine
- Save Game Pro uses Xbox Connected storage to save and load data, it is worth to check it out: Connected Storage
- Don’t know where to start? Take a look at Unity’s guide about How do I develop to Xbox Platforms?
When you have successfully installed Xbox SDK properly, then you can install Save Game Pro Xbox Cloud integration through Window > Save Game Pro > Settings:
Go to Integrations section:
Click Install button next to the Xbox Cloud title to install Save Game Pro Xbox Cloud integration.