Identifier Usage

Overview

Identifiers are used throughout the Offer and Order to identify entities in and outside of the messages. They are of an ID_Type and restricted to a string, however this document stipulates further restrictions to these identifiers. Offer in this context will be either a new offer created without any preconditions via Airshopping or Offer created during reshopping using OrderReshopRQ

ID Format, Uniqueness and Persistence

Offer

Item	Format	Uniqueness	Persistence	Additional Notes

Item

Format

Uniqueness

Persistence

Additional Notes

Offer ID

String (max 64 chars)

Airline unique.

Globally unique when Owner Code is used as a Composite key.

Persistent within a shopping transaction as defined by the Airline.

Offer Item ID

String (max 64 chars)

Unique within an Offer.

Airline defined

Offer Service ID

String

Airline defined

Order

Item	Format	Uniqueness	Persistence	Additional Notes

Item

Format

Uniqueness

Persistence

Additional Notes

Order ID

Order ID Format

Global

Yes

Order Item ID

String

Airline defined

Best practice is to make the Order Item ID unique within the Order.

Yes

Order Item Service ID

String

Airline defined

Best practice is to make the Service ID unique within the Order.

Yes

ServiceID of unchanged services during reshop will be persistent and will be the same in the newly exchanged Orderitem. As the service in an Order is persistent and unique in an Order.

Passenger

Item	Format	Uniqueness	Persistence

Item	Format	Uniqueness	Persistence
Pax ID	String	Airline unique	Within Order
Individual ID	String	Airline unique	Within Order
Visa ID	String	Airline unique	Within Order
ContactInfoID	String	Airline unique	Within Order

Segments

Item	Format	Uniqueness	Persistence

Item	Format	Uniqueness	Persistence
Dated Marketing Segment ID	String	Airline unique	Within Order
Dated Operating Segment ID	String	Airline unique	Within Order
Dated Operating Leg ID	String	Airline unique	Within Order

Passenger Segments

Item	Format	Uniqueness	Persistence

Item	Format	Uniqueness	Persistence
Passenger Segment ID	String	Airline unique	Within Order
Passenger Journey ID	String	Airline unique	Within Order
Origin Destination ID	String	Airline unique	Within Order

Legacy

Item	Format	Uniqueness	Persistence

Item	Format	Uniqueness	Persistence
Booking Ref (PNR)	String (5-7)	Airline unique	Yes
Document Number	Integer (8)	Airline unique	Yes
Coupon Number	Integer (8)	Airline unique	Yes