#WindowsPhoneSupport
Text messages
You can automatically back up your SMS and MMS messages to the cloud. That way, the next time you get a new Windows Phone, you can restore your conversations when you set up the phone. When you delete your messages from your phone, they'll be deleted from the cloud as well, so you're always in sync.
To turn on text message backup
1.In the App list, tap Settings Settings icon > Backup.
2.Tap Text messages, and then turn Text message backup on or off.
Notes
? Turning off backup won't delete previously saved SMS and MMS messages. To delete messages from the cloud, you'll need to turn on backup and delete the messages off your phone.
? On Windows Phone 8, you can also turn Chat backup on or off.
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