A. 1. Manually add Airbnb reservations: Open the TripIt app, tap on 'Add Trip', and enter your Airbnb reservation details manually. 2. Use email forwarding: Forward your Airbnb confirmation emails to plans@tripit.com to have them added to your itinerary.

B. 3. Check for updates: Ensure that you are using the latest version of TripIt, as updates may improve integration with various services.