ForeFlight Mobile has two kinds of helper messages to assist with the flight plan filing process. These messages ensure that you file with accuracy and avoid potential issues with ATC down the line.
The first type of helper message is a warning. Warnings are new in ForeFlight Mobile version 6.5 and appear when something doesn’t look quite right in the Route or Altitude fields.
In the route field, the main thing ForeFlight will be looking for is an invalid or mistyped fix. The warning gives you an opportunity to double-check that you have entered the route as intended before you file. There may be route codes or other route elements that the app is not familiar with and so you can still file your flight plan when this warning is triggered.
An example of a route element warning.
A warning will also be triggered if you select an altitude that does not agree with your direction or type of flight:
An example of an altitude warning where an altitude of 12,000 was chosen for an eastbound IFR flight.
Similar to the route field warning, the altitude warning gives you a chance to ensure you have entered the proper altitude before you file.
The second type of helper message is an error. Errors are more restrictive in that they prevent you from filing a flight plan until they are corrected. Errors include things like: not enough fuel to meet required reserves, incomplete ICAO profile elements, and invalid departure times.
An example flight plan error indicating not enough fuel to meet required reserves.
Read more here:: ForeFlight Mobile’s Helper Messages Make Filing Easier