@hachque Are you using 2 factor auth? If so, Webmaster Tools App need a single use password to work.
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
@hachque Are you using 2 factor auth? If so, Webmaster Tools App need a single use password to work.