The first thing you'll need to do after selecting a Trigger and Action is connect your Basecamp 2 account to Zapier.
First, click to connect a brand new Basecamp 2 account to Zapier. Inside the Zap editor, this might be a large orange button.
Basecamp 2 makes it super-simple to connect to Zapier. The only option here is to label your new connection, if you'd like. This label is only used inside of Zapier.
You should now see a new window appear, asking for your permission such that Zapier can access your data inside Basecamp 2.
Clicking the green "Allow" button finishes the process! Your Basecamp 2 account is now connected to Zapier.