Here are the steps you have to follow in order to allow Google Signup on your Woffice website.
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If you do not have any project yet, create one and name it as you wish:
3. Click the "Enable API" button:
4. Select the "Google + People API" and enable it by clicking the "ENABLE" button.
5. You can now reach your "Credentials" page and "OAuth client ID":
The application type is "Web Application" and you need to set as "Authorized Redirect URIs" the callback URL found in your Woffice Theme Settings (see first screenshot above).
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