Error: XX is not a valid airport the US. There is no ICAO set in this airport. AP ID: XX (1) This is a fatal Error. FOS APIS 91 will now terminate.

Error: XX is not a valid airport the US. There is no ICAO set in this airport. AP ID: XX (1) This is a fatal Error. FOS APIS 91 will now terminate.

Error:
XX is not a valid airport the US. There is no ICAO set in this airport. AP ID: XX (1) This is a fatal Error. FOS APIS 91 will now terminate.


XX is not a valid airport for departing the US. There is no alternate airport set in the leg to use as a valid APIS airport.



Solution:
Verify the alternate airport to be used for APIS reporting purposes is listed as a CBP approved airport.