Developer's Guide

Processors Requiring Additional Transaction Parameters
American Express
A
72 Payflow Pro Developer’s Guide
AIR-
NUMBEROFCITIES
Number of unique cities in this trip including the
cities of origin and destination, where a maximum
value of 10 is allowed. For example, AIR-
NUMBEROFCITIES is 3 for the following trip:
DEN to LAX
LAX to SFO
SFO to DEN
If not provided, this value is equal to the number
of AIR-ROUTINGCITYn parameters.
No Numeric
AIR-ROUTINGCITYn Airport codes of each city in this flight including
cities of origin and destination, where n is a value
from 1 to 10.
For a list of airport codes, see http://www.world-
airport-codes.com/alphabetical/airport-
code/a.html.
NOTE: Present day airport codes are three
characters in length. The five character
length is designed to allow for future
expansion.
No Alpha-
numeric
5
AIR-CARRIERn Two character airline code for each unique airline
in this flight, where n is a value from 1 to 10.
If the same carrier is used for multiple segments of
the trip, it is passed only once. For example, the
two AIR-CARRIERn values for the following trip
are UA and AA:
UA flight from IAD to DEN
UA flight from DEN to LAX
UA flight from LAX to SFO
AA flight from SFO to DFW
For information about airlines codes, see
h
ttp://en.wikipedia.org/wiki/Airline_codes-All.
No Alpha-
numeric
5
AIR-FAREBASIS List discounts associated with the travel. No Alpha-
numeric
24
AIR-
NUMBEROFPASSENGER
S
Number of passengers on this trip. No Numeric
AIR-ISETICKET If this is an electronic ticket. The values are:
Y = yes
N = no
No Alpha-
numeric
1
AIR-
RESERVATIONCODE
Code assigned to the travel reservation before the
ticket was purchased.
No Alpha-
numeric
15
T
ABLE A.1 American Express CAPN parameters (Continued)
Parameter Description Required Type Length