Some of the apps installed in your Android Marshmallow smartphone or tablet are the apps which are needed to be configured with other apps of Windows or other providers. On the other hand, some of the apps are needed to be configured from the websites. If you want to configure such apps, you need to open up their websites to configure them, accordingly, to perform smoothly and up to maximum capacity.
We have explained the path to search out the website links of different apps to work upon them. This path is highlighted with illustrated screenshots which are given below in the instructions.
Tutorial
1: Tap the icon of the ‘Settings’ app, an app which is required for the major settings mechanisms in Android Marshmallow smartphones and tablets. This icon is currently placed at the bottom-right corner of Home screen of my Android Marshmallow smartphone.
2: At the ‘Settings’ screen, scroll down to the ‘Device’ section and tap the ‘Apps’ to open up the screen, so that, may start functioning to configure and manage apps for their best performance.
3: At the ‘Apps’ screen, tap the ‘Configure apps’ button, which is available near the top-right corner of the apps screen but immediately below the status bar. It will instantly open up the ‘Configure apps’ screen. 
4: At the ‘Configure apps’ screen, there are 6 different configuration steps; ‘App links’ is just the one. If you want to visit the links of the apps and configure the apps for the best output, tap the ‘App links’ to see the app links.
5: At the ‘App links’, some of the apps are specifically made for the Android and their web links are not given while the web links of other apps are given. You may open up the links in your browser and configure the apps, accordingly.
That’s all!