This check prevents any duplicate submissions proceeding to review.
AIRA scans the title, abstract, and body text of the manuscript. She checks this against our database of all other papers submitted to Frontiers. Sometimes, authors have a paper in review and submit their revisions as a new manuscript erroneously. Other times, authors resubmit a previously rejected manuscript after making necessary revisions. AIRA highlights these so the editorial office can clarify with the authors.
You do not need to take action if this check highlights a duplication. The editorial office is always aware and will ensure the same paper is not under review in two different places.