Google 4 Manual Book page 181

3. Drag the red line by its right side to the
limit you want to set.
When your data usage reaches the limit,
mobile data will be turned off automati­
cally and many features of your phone
won't work correctly. You'll receive a no­
tification when this occurs.
View or restrict data usage by app
Some apps transfer data in the background—
that is, when you're not actually using the
app, it may download data for future refer­
ence. Restricting background data usage for
individual apps can sometimes be a useful
way to reduce your overall data usage. How­
ever, this is a drastic measure that may also
affect the app's performance or cause it to
malfunction. Check whether data usage can
be restricted from the app's own settings
(available from within the app) before re­
stricting it here.
1. Make sure you're viewing the network for
which you want to view or restrict app
WIRELESS & NETWORK SETTINGS 172