You can use the respective actions from below to Save and Retrieve the data of key-value pairs of any Outsystem Data Type.

• Get Actions 
  • GetBoolean         : Retrieves a Boolean value from the preferences
  • GetInteger           : Retrieves an integer value from the preferences
  • GetLongInteger : Retrieves a Long-Integer value from the preferences
  • GetText                 : Retrieves a text value from the preferences
  • GetAllKeys           : Returns a Text-List of All Keys define in preferences.
• Put Actions
  • PutBoolean         :  Sets a Boolean value in the preferences
  • PutInteger           :  Sets an integer value in the preferences
  • PutLongInteger :  Sets a  Long-Integer value in the preferences
  • PutText                 :  Sets a text value in the preferences
• ValidateActions
  • HasKey: Check the Specific Key is available or not in the preferences
  • CheckUserPrefrencesPlugin : Check for Cordova Defined & Plugin-Loaded
• Clear Actions
  • DeleteKey : Removes a value from the preferences of the specified Key
  • ClearAllPreferences : Removes all key-values from the preferences

Please Note: 

- Updating the application will not impact the data stored in Shared-preferences.

- In case you're storing any confidential data then it must be encrypted.