Thread:AnnabellRice/@comment-26100657-20151125023614/@comment-61371-20151126010357

It's usually a case-by-case basis on the novels. I know a few that are considered 616 canon, but most aren't. Due to the nebulous nature of them, we usually don't count appearances unless we know the reality. Most CAN fit in 616 (or 1610, possibly, in the case of the Ultimates novel from a few years ago), but it's so rarely clear. The ones that ARE 616 are referenced in the Handbooks (the Chaos Engine trilogy), but most aren't, nor are any given reality numbers in any official (or unofficial that I know of) source.

As for these...I'm not sure. Haven't heard of the Captain Marvel novel, but I believe Forever Red might be due to the reasons Annabell stated.

And, yeah, there are a number of novelizations that are adaptions of existing stories. Death of Captain America, Days of Future Past, Civil War, etc. Haven't read any, though, so I'm not sure if they contradict anything from the original telling.