"What a good news" vs. "such a good news" [closed]

I have just got a great news. I don't know what to say:

Such a good news.

or

What a good news.

The context should be formal (I am talking about hiring).

Solution 1:

Either work if you remove the "a". "News" is not countable.

The above is correct, and was the selected answer.

However, I wanted to add some clarity.

"Such good news" is a phrase. "What good news" is an exclamation.

As an exclamation, "Such good news!" implies "That is such good news!" but you can also say things like, "Where did you hear such good news?" or "You always have such good news."

"What good news!" stands on its own as a full sentence.

Solution 2:

"I have just had some good news. It is X...Y...Z."
"What good news!"