Usage and Grammar
Q. Hello! Is the following sentence grammatically correct? “Good news is, at Microsoft we are here to help!”
A. Your sentence is casual—almost slangy—because it leaves out words for the listener/reader to fill in: “The good news is that at Microsoft we are here to help!” Although your sentence is technically grammatical, it doesn’t reflect formal English grammar. Of course, in advertising not many people expect formal English grammar.