1. When no internet/data connection is detected, the app will switch to offline mode. A blue banner will remain at the top of the display screen for the duration of time the user is offline. 

2. As the user does work while offline, changes will be stored in the Pending Uploads Queue under Settings > Synchronise

3. When the user is able to connect to internet again, the changes will be automatically synced back to Salesforce - without manual intervention.