There are several common mistakes to avoid when submitting short stories online. Firstly, not tailoring your story to the publication. Every online platform has its own aesthetic and readership. If your story doesn't fit their style or theme, it may be rejected. Secondly, over - looking the importance of a good title. A weak or unappealing title can put off editors and readers alike. Thirdly, submitting a rough draft instead of a polished piece. Your story should be free of major plot holes, inconsistent characters, and unclear writing. Fourthly, not networking or building relationships with the editors or other writers in the community. Sometimes, having a connection can increase your chances of getting your story accepted. And finally, not being patient. The review process can take time, and constantly pestering the editors about the status of your submission is not a good look.
Well, first of all, a big mistake is ignoring the details in the submission guidelines. For instance, if they ask for a specific file type and you send something else, it's likely to be rejected. Secondly, a poorly written synopsis can be a problem. The synopsis should give a clear idea of what the short story is about without giving away too much. And not proofreading your story thoroughly for both grammar and style is a no - no. Also, some people make the mistake of submitting a story that has been plagiarized, which is completely unacceptable in the world of online publications.