This is a question about submitting for the magazine - does it matter if it wasn't written with the magazine in mind? Does it matter if it was posted on a blog beforehand? And what happens if it fits more than one prompt?
It’s fine if it wasn’t written with the magazine in mind! Just as long as it’s still around 1000 words.
No, it doesn’t matter to me if you posted on your blog beforehand.
If it fits more than one prompt, submit it twice, selecting the different prompts each time.
For more information on Yeah Write’s forthcoming literary magazine and how to submit, read here.