To push data collected Offline, go to the three bar menu in the upper right hand corner of your app. Click on it and you will see a series of icons.
To push Offline Data back to your server (you must have 4G, LTE or WiFI connectivity and not in airplane mode), choose the Data icon.
Once you have done that, click "Offline." Then you will have two options-to push voters individually back to the server or "Push All," which gives you the chance to push all the voter data you have collected in a batch back to the server. If you choose that option, your queue will empty-all the voter contacts you have collected are now pushed back to the server and off your device.