As this questions says, the Ubuntu 14.04 Software Center sync doesn't work.
Below there is a comment by MattiJsR:
How will they make the sync work now that U1 is no longer available?
And my question is the same.
Is there an alternative (3rd party) to sync it? If not, will Ubuntu/Canonical bring something in to do that, in the same way just without using the U1 services?