After planning your trip in Trip Planner, be sure to save your newly created trip before attempting to share it with friends and family. Click on the orange button icon at the top of the left-hand side bar in the Trip Planner.
A small window will appear for you to give your trip a name and a description. Then hit Save Trip.
Next, under your user profile at the top navigation bar, select Saved Trips and find your newly saved trip.
In the Title Bar, by the name of your trip, there will be 3 vertical dots, click on the dots and a small pop-up screen will appear for you to select options on how you would like to share your trip.