How to install Remind1
You can install Remind1 from the Google Workspace Marketplace by following this link:
Open the app in your Google Calendar
After installing Remind1 from the Google Workspace Marketplace you can find the Remind1 app in your Google Calendar.
Left click on the icon to open the app.
Select your country
Select the country you would like to send SMS messages to. This selection can be changed on the pricing page if you picked the wrong country.