Step 1: To start, make sure you're signed in. Click “Sign In” at the top right.

Step 2: If you haven't used the benchmark before, you will see this screen.  Click on “Google Analytics” to start linking your Google Analytics account

Step 2a: Alternatively, if you chose 'I'll do this later', you can do this anytime by going to Settings.

Step 3: Click on “Link a Google Account” to link your Google Analytics

Step 4: Follow the prompts to Sign in with Google, and click “Allow” to allow access to the Benchmarking Tool

Step 5: Select the appropriate Google Analytics account/property/view from the 3 dropdown menus, and click “Select”

That's it, you're now connected.