Usually you have installed on his Samsung Galaxy S5 very many apps. Most apps will periodically receive an update by the developer. Every time a new app update is set by the developers in Gogle Play Store, you receive a notification. Thus you will thus always be informed when a new app version is available.
On the one hand very useful, on the other but also annoying. Because you will get the email every time in the status bar appears. If you interfere with this fact and you prefer to no longer receive notifications about app updates from the Google Play Store, you can deactivate it as follows:
1. Open to on the Samsung Galaxy S5, the app "Google Play Store"
2. Tap here now in the top left on the bar icon or drag the menu bar from the left in the screen
3. Now select "Settings" to enter the sub-menu of the Google Play Store
4. In the section "Notifications" you can "available app updates" to see the option. Uncheck to disable the function. You will now no longer be notified on your Samsung Galaxy S5 know when a new app version is