Verifly is an app that American Airlines and maybe others airlines use to verify and upload any documents a destination might require so the airline doesn't have to check the documents at the airport. In our experience (only on AA) we were unable to check in online and and get boarding passes without having prior approval of the required docs by Verifly. We leave Friday the 28th and since we have all our required docs approved by Verifly we will be able to check in online and print boarding passes or get mobile boarding passes 24 hours before our flight. I think it becomes a moot point with the changes on Nov. 1st as far as SXM goes but am not sure about other destinations.