Navigate to your device's settings and scroll to the bottom of the Settings screen, where your downloaded apps are listed alphabetically.
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Find Playground and tap it to access the Playground Settings screen.
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Find the Notifications tile. If you see Off below the tile name, as seen in the screenshot on the left, tap on the tile to reach the Notifications settings screen. Toggle Allow Notifications on—the button will turn green, and more notification settings options will appear.
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When your notifications are turned on, your Playground Settings screen will look like the screenshot on the right—the Notifications tile now reads Banners, Sounds, Badges.

Navigate to your device's settings and scroll to the Apps tile on the Settings screen; then scroll down to and tap the Playground tile.
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You'll be brought to the Playground Settings screen.
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Find the Notifications tile. If you see Blocked below the tile name, as seen in the screenshot on the left, tap on the tile to reach the App notifications screen. Toggle Show Notifications on—the tile and the toggle button will turn blue.
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When your notifications are turned on, your Playground Settings screen will look like the screenshot on the right—the Notifications tile now reads Allowed.

Begin by making sure you've enabled Playground notifications following the instructions above.
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If you've already completed step 1, check the notification settings on your device:
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