When a price changes after your client authorizes payment, the old authorization no longer matches what you plan to charge. This article explains what Tern does and how to collect a fresh authorization.

An authorization covers the exact amount, supplier, and dates your client approved. It is your client's documented permission to charge their card for that specific transaction, and it protects you from chargebacks only for what was approved. [VERIFY: Fin has been telling advisors a mismatched charge "won't go through" even when lower. The documentation frames a mismatch as a chargeback protection gap with an alert, not a blocked transaction. Confirm which is accurate before publishing.]

The merchant name on your client's statement does not need to match the supplier name you entered in Tern. If the receipt shows a parent company instead of the property name, the authorization still covers the charge as long as the amount matches.

Tern does not automatically expire or delete an authorization when you change important fields. Instead, you'll see an alert about the changed information when logging a payment from that authorization, to flag potential chargeback risk. The alert appears when any of these change:

[SCREENSHOT: Booking & Pricing tab showing the Past Payments and Authorizations section with the delete option]

Confirm final pricing, including taxes and any optional add-ons, before you send the authorization request. This prevents back-and-forth with your client.