Most researchers assume that once the paper is written, the hard part is over. In reality, the submission process is where a lot of good research gets stuck. Wrong formatting, missing documents, unclear cover letters, and sending papers to journal submission services that do not match the research scope are all reasons why manuscripts get rejected before they even reach the review stage.
Journal submission is not just uploading a file and hitting send. Every journal has its own set of requirements. Some want specific file formats, others have strict word limits, and almost all of them require a properly written cover letter alongside the manuscript. Getting any of this wrong can delay your publication by months.