Up to 30 days after they’ve been sent or received

You can view received messages at your SMS Overview in the 'SMS' left-hand column of your Dashboard → 'SMS Overview'. Here you can select if you wish to see the overview of 'All messages', 'Received', or 'Sent'.

More than 30 days after they’ve been sent or received

For messages received beyond 30 days (up to 3 months), you can export an Excel file. Go to your SMS Overview in the 'SMS' left-hand column of your Dashboard → 'SMS Overview' → 'Export' tab.

Within that overview, you can view your replies by selecting ‘Received’ out of the drop-down menu. You can select the month, message type (all messages, received, or sent), delimiter, and whatever extra fields you wish to export.