A transaction ID is a unique identifier assigned to a payment by the gateway, acquirer or scheme so that it can be referenced unambiguously across systems. The merchant typically holds the gateway ID, the acquirer holds its own ID, and the scheme assigns a separate ID for clearing. Matching IDs across the chain is how reconciliation works at the level of an individual payment.
Travel payments glossary
Transaction ID
A unique identifier assigned to a payment by the gateway, acquirer or scheme.
Why it matters in travel
In travel, the transaction ID is what links a payment back to the booking, the customer record and the settlement movement. Without consistent ID handling, finance, customer support and operations all end up looking at the same payment under different names.
Different ID schemes in different systems is the single largest reason refund queries take twenty minutes when they should take twenty seconds. The gateway ID is in one tab, the acquirer ID in another, the booking reference in a third and the customer is on the phone in real time. Even small inconsistencies — leading zeros, capitalisation, prefix differences — turn quickly into customer-facing friction.
A clean travel-payments system surfaces every ID against the booking automatically, so a single search returns the whole trail: authorisation, capture, settlement, refund and any dispute correspondence. The teams that get this right rarely talk about transaction IDs at all, because they never need to. The teams that get it wrong have a Slack channel for finding them.
How felloh helps
felloh keeps gateway, acquirer and scheme IDs tied to the booking record so any team can follow the payment trail from booking to settlement and back with one identifier.
Where this shows up in finance operations.
Transaction ID touches more than one workflow at felloh. Start with the pages most travel teams reach for next.
- Financial Operations
Reconciliation, settlement, refunds and protected-funds workflows on one booking-aware ledger.
Explore - Automate Reconciliation
Bulk settlements unpacked to fees, refunds and chargebacks; bank transfers matched without references to chase.
Explore - Know Your Cash Position
See received, protected, committed and available cash by booking — without rebuilding the picture from exports.
Explore
More on travel finance operations.
Real-world context from the felloh team and customers, written for travel finance and operations.
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InsightsReconciliation: What it is and why your Travel Business needs it
Why travel operators see a gap between sales records and the bank balance — and the basics of reconciling payments back to bookings.
Read article -
UpdatesCard Payment and Bank Transaction Reconciliation Made Easy for Travel pros
With felloh we make reconciliation of card payments and bank transactions simple.
Read article
Connect the dots.
See how payments, settlement, refunds and reporting evidence connect around every booking.