Amadeus TTK Command: Manual TST Fare and Tax Update Guide

A complete guide to the TTK command in Amadeus — how to manually update fare, tax, baggage, fare calculation, fare basis, total amounts, and validity dates in a TST.

Automatic pricing in Amadeus does not always produce the result the airline requires. Special fares, manually quoted amounts, corrected taxes, or an approved baggage allowance may all need to be entered by hand. The TTK command is the entry that makes this possible. It allows you to manually add, change, or delete specific fare and tax elements in an existing TST, along with baggage allowances, fare basis codes, fare calculation lines, and validity dates. This guide walks through every TTK variation, so you can correct any TST element accurately before ticket issuance.

Prerequisites — Before Using TTK

The TTK command edits an existing TST. It cannot be used to create one from scratch. Before you run TTK, verify each of the following:

A TST must already exist in the PNR — created either through automatic pricing (FXP, FXR, FXO) or manually via the TTC command. TTK cannot build a TST from nothing.
Confirm the TST number — display with TQT first. If multiple TSTs exist (multi-passenger PNR), you must know which one you are updating.
Airline authorization for manual fares — if you are entering a manually quoted amount, the airline must have approved it. Record the authorization as an RM or OSI remark before running TTK.
Office profile permissions — your sign-in must have permission to modify TST records. Restricted agents (view-only profiles) cannot use TTK.
PNR retrieved and active — TTK operates on the PNR currently open in your workspace.

If any of these is missing, resolve the state first. Running TTK without an existing TST simply produces an error.

⚠️ Critical Warning — Verify TST Data Before Issuance

Manual edits to a TST bypass every automatic fare and tax validation the system would normally perform. If a TTK entry is wrong — wrong amount, wrong tax code, wrong baggage allowance — the error is accepted silently and carried straight into the issued ticket.

The consequences of an incorrect TTK entry

Agency Debit Memos (ADMs) — airlines detect the discrepancy during BSP settlement and bill the agency for the difference plus a penalty.
Rejected tickets at check-in — passengers can be denied boarding if the TST fare or tax does not match the airline’s record.
Costly manual corrections — fixing a wrong TST after issuance requires a void (same day only) or a full refund and reissue with new penalties.

Mandatory verification workflow

1️⃣ TTK/...    → apply the manual edit
2️⃣ TQT        → redisplay the TST
3️⃣ verify each field → fare, tax, total, baggage, validity
4️⃣ TTH        → check the change history
5️⃣ TTF        → clear the change flag
6️⃣ TTP        → issue the ticket

Rule of thumb: Never issue a ticket straight after a TTK entry. Redisplay the TST with TQT, verify every field you changed, and only proceed to TTP when you are certain the record is correct. Learn more about preventing ADMs in our full ADM guide.

What Does the TTK Command Do?

TTK is the Amadeus GDS command used to manually update fare, tax, baggage, fare calculation, and validity information in a TST.

Category: TST / Ticketing.

The TTK entry allows you to manually add, change, or delete specific fare and tax elements in an existing TST. Each TTK variation targets a different part of the ticket record, giving you precise control over exactly which element is updated. For validity, baggage and fare basis updates, the companion TTI command is often used alongside TTK.

Quick Reference — TTK Command Summary Table

All TTK variations at a glance. Use this table as a fast lookup during manual TST updates:

Command	Function
TTK/FEUR1650.00	Add or change the base fare
TTK/F	Delete the fare element
TTK/EUSD1325.00	Create an equivalent fare amount
TTK/E	Delete the equivalent fare
TTK/XEUR4.15FRSE	Add an individual new tax
TTK/X	Delete all new taxes
TTK/X/O or TTK/O/X	Delete all new and old taxes
TTK/X2	Delete tax number 2
TTK/X3-O	Change tax 3 from new to old
TTK/X4-X	Change tax 4 from old to new
TTK/X3-ONUSD13.25USAP	Change tax code, amount & identifier of tax 3
TTK/TUSD915.75	Add or change the total fare
TTK/RAED920/T0	Paid fare with total of 0
TTK/O12YQ	Add a paid tax
TTK/X12YQ	Add a tax amount that needs to be paid
TTK/CSHJ CAI125.40…	Add a fare calculation line
TTK/BKLQART CH	Add a fare basis (child passenger)
TTK/A30K	Add a 30 kg baggage allowance
TTK/V16AUG16AUG	Add not-valid-before and after dates

Base Fare & Equivalent Fare

Add or change the base fare:

TTK/FEUR1650.00

Delete the fare element:

TTK/F

Create an equivalent fare amount:

TTK/EUSD1325.00

Delete the equivalent fare amount:

TTK/E

Taxes

Add an individual new tax to the TST:

TTK/XEUR4.15FRSE

Delete all new taxes:

TTK/X

Delete all new and old taxes:

TTK/X/O

or:

TTK/O/X

Delete tax number 2:

TTK/X2

Change tax number 3 from a new tax to an old tax:

TTK/X3-O

Change tax number 4 from an old tax to a new tax:

TTK/X4-X

Change the tax code, amount, and tax identifier of tax number 3:

TTK/X3-ONUSD13.25USAP

Total Fare

Add or change the total fare amount:

TTK/TUSD915.75

Paid & Additional Taxes

Indicate a paid fare of 920 with a total of 0:

TTK/RAED920/T0

Add a paid tax:

TTK/O12YQ

Add a tax amount that needs to be paid:

TTK/X12YQ

Fare Calculation

Add a fare calculation line manually:

TTK/CSHJ CAI125.40SM SHJ158.60NUC284.00END ROE3.71425

Fare Basis

Add a fare basis for a child passenger:

TTK/BKLQART CH

Baggage Allowance

Add a 30 kg baggage allowance:

TTK/A30K

Validity Dates

Add the not-valid-before and not-valid-after dates:

TTK/V16AUG16AUG

When to Use TTK

Use TTK when you need to manually correct or update specific TST fare, tax, baggage, fare basis, fare calculation, total amount, or validity information before ticket issuance. Typical scenarios include:

Applying a manually quoted fare approved by the airline.
Correcting tax amounts, codes, or identifiers.
Adding a baggage allowance that is not in the automatic pricing result.
Entering a fare calculation line for a manual TST.
Setting not-valid-before and not-valid-after dates on a ticket.

Related Commands & Further Reading

Explore the related Amadeus TST commands below to complete your manual ticketing toolkit:

Amadeus Command

TTC — Manual TST

Create the manual TST that TTK will update.

Amadeus Command

TTI — Update Validity

Companion command for validity, baggage and fare basis.

Amadeus Command

TQT — Display TST

Redisplay the TST to verify the TTK change.

Amadeus Command

TTH — TST History

Review the TST history after a TTK edit.

Amadeus Command

TTF — Remove Change Flag

Clear the TST change flag before issuing.

Amadeus Command

TTP — Issue Ticket

Issue the ticket after TTK verification is complete.

Frequently Asked Questions

What does TTK/FEUR1650.00 do?

It adds or changes the base fare in the TST to EUR 1650.00.

How do I delete all taxes from the TST?

Use TTK/X for new taxes only, or TTK/X/O to delete both new and old taxes.

How do I add a baggage allowance?

Use TTK/A30K to add a 30 kg baggage allowance to the TST.

Do I need a TST before using TTK?

Yes. TTK edits an existing TST — it cannot create one. If no TST exists in the PNR, create one first with the TTC command or price the itinerary automatically.

Conclusion

The TTK command is the manual-editing tool for TSTs in Amadeus. It gives you direct control over every fare-related element of the ticket record — base fare and equivalent fare, taxes, total amount, paid and additional taxes, fare calculation, fare basis, baggage allowance, and validity dates. Use TTK/F and TTK/E for fares, the TTK/X series for taxes, TTK/C for fare calculation, and TTK/B, TTK/A, and TTK/V for fare basis, baggage, and validity. Because these changes are made manually, always verify the result by redisplaying the TST with TQT before issuance. Paired with TTC, TTI, TTF, and TTP, TTK completes the Amadeus TST toolkit and ensures the ticket record matches the airline’s requirement exactly.

🔖

Save This TTK Guide for Manual TST Updates

TTK is the entry you reach for whenever the TST needs a manual fare, tax or baggage correction. Bookmark this page — and explore our other TST command guides — so the summary table, prerequisites and ADM warnings are always one click away.

TTC — Manual TST TQT — Display TST TTP — Issue Ticket

Press Ctrl + D (Windows) or ⌘ + D (Mac) to add it to your bookmarks.