This pull request was rejected https://github.com/aerogear/aerogear-unifiedpush-server/pull/230

as we discussed the UX consequences that this change would have.

We have decided with Hylke Bons and Erik Jan de Wit to use warning-icon as an indication of the wrong variant configuration.

Then, we could link from Dashboard to variants page and scroll the affected variant into the view, so user can fix the configuration.