When
All remaining segments of the itinerary changed, so the TST "dropped out"; to reissue you must rebuild it from the historical TST.
Steps
| # | Entry | What it does | Why |
|---|---|---|---|
| 1 | TWD/L… or TWD/TKT125-… | Old e-ticket: fare and coupons. | What was paid. |
| 2 | TQT · TTH/T1A | Stored fares incl. historical · the historical TST 1A. | The old fare data to copy. |
| 3 | TTC | New blank TST shell. | |
| 4 | TTK/U GBP508.00/XGBP82.00YQAC/…/TGBP639.90 | Pastes the old fare and taxes into the new TST. | Rebuild the base. |
| 5 | TTK/EXCH | Exchange mode. | |
| 6 | TTK/L1/BY2/V10FEB10FEB/A23K · TTK/L2/VXX10JUN | Fare basis, validity, baggage. | |
| 7 | TTK/WGBP300 · TTK/TGBP50 · TTK/X20YQ | New base fare · collection · new taxes (if any). | |
| 8 | TTK/CLON BA DOH M/BT BA LON M/BT END | Fare calculation. | |
| 9 | 9/+/CASH/EUR50 | Old + new FP. | |
| 10 | TWD/L14, FO*L14 | FO element. | |
| 11 | FVBA | Validating carrier (it drops out with the TST). | |
| 12 | RF + name, TTP/F/RT | Issues. |
Traps
- If an FH element relates to the itinerary, passenger-relate the
TTP, or Amadeus says the booking is already ticketed. - This is the most error-prone exchange — use ATC if at all possible.