The Fatah-360 is similar to Tochka-U , same range, more accurate, slightly slower and similar warheads. The Fatah uses Glonass and inertial navigation system as a backup. This would free up Iskander to be used on targets further away or need a heavier warhead. Although you could fire more then one at a target if needed. I wonder North Korea ever sent some of it's Tochka copy missiles to Russia it's also very similar to the Fatah and called KN-02 Toksa.
Either way Ukraine getting some more missiles fired at it.
Ukraine war: Iran 'sends hundreds of missiles to Russia' in 'dramatic escalation'
Iran is believed to have sent more than 200 ballistic missiles to Russia - a move security chiefs say would be a "dramatic escalation" of its defence partnership with Moscow.
A Russian ship delivered the short-range Fatah-360 missiles from Tehran to a port in the Caspian Sea, a Ukrainian source told Sky News on Saturday.
Ukraine and its allies in the West have long feared that Iran has been supplying Russia with ballistic missiles.
https://news.sky.com/story/amp/ukraine-war-iran-sends-hundreds-of-missiles-to-russia-in-dramatic-escalation-13211063