I thought maybe this would be the place to ask this since i'm fairly new to submitting short stories and such and I've been wondering about this for awhile.
I've read in interviews and articles about authors that have novels that were started as short stories. I understand that some of them meant unpublished short stories and the story just grew into a novel but my question is this:
if you write a short story that you want to submit to mags, involving a world, or characters that you would later like to use in a novel, is that possible or a problem as far as publishing goes?
ex. a Short Story involving Mike and May doing A, submitted to mag, published and then using Mike and May (and/or their world) in novel doing B
Or could you even vary the short story to add into the novel?