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Baggage and seat productCode freshness

How long ancillary productCode values stay usable, when they become stale, and how to avoid reusing baggage or seat selections from an old booking context.

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Use this page when seat or baggage selection fails because the ancillary mapping may be stale.

Short answer

Treat baggage and seat productCode values as booking-context data, not as reusable catalog IDs.

If the verify context, offer context, itinerary, passenger mix, or booking timing changed, refresh ancillaries before order.do.

FAQ

Can I reuse an old baggage productCode?

Not safely.

Use the productCode returned by the current ancillary response for the current booking context.

Can I reuse an old seat selection?

Not safely.

Seat availability can change before booking or ticketing.

When should I refresh ancillaries?

Refresh them when the booking context changed or when booking was delayed.

What freshness means here

A productCode is only meaningful inside the current booking context.

That context includes:

  • current itinerary

  • current passenger mix

  • current verify or offer state

  • current ancillary response

Do not treat ancillary codes as long-lived static values.

What makes ancillary selection stale

Refresh baggage or seat selection when any of these changed:

  • sessionId

  • OfferId

  • target flight

  • segment structure

  • passenger count or passenger type

  • fare or inventory state

  • booking delay long enough to make the old context unreliable

Baggage freshness rules

Use the latest baggage response

Use the baggage productCode from the current getLuggage.do response.

Keep segment mapping exact

Make sure each baggage selection still matches the correct segment.

Keep connected-direction selection consistent

For connecting flights, baggage may need to stay consistent across connected segments in the same direction.

Seat freshness rules

Use the latest seat response

Use seat data from the current seatAvailability.do response.

Do not assume the seat still exists later

Seat inventory can change before booking and again at ticketing.

Keep fulfillment behavior explicit

Set the seat handling mode in order.do.

This controls what happens if the selected seat is gone at fulfillment time.

Common failure signals

Typical stale-ancillary failures include:

  • 309 — ancillary productCode is invalid or stale

  • 409 — baggage productCode does not match the segment

  • seat or baggage mismatch after the session or offer changed

Quick decision rule

Use this rule in production:

  • new sessionId or new OfferId — refresh ancillaries

  • changed itinerary or passenger mix — refresh ancillaries

  • delayed booking — refresh ancillaries before order.do

Common mistakes

Reusing baggage productCode across a new verify session

Do not do this.

A new sessionId means the old ancillary context may be stale.

Reusing seat selections after itinerary changes

Do not do this.

Even small flight changes can break seat mapping.

Treating productCode like a permanent SKU

Do not do this.

It is context-bound booking data.

Best practice

Keep ancillary selection close to order creation.

If booking is delayed, rerun ancillary lookup before order.do.

Related pages

PreviousBaggage
NextLast-Minute Flights

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