travel booking: signed webhook retry versus a green badge (2026-09-05)

Compare Travel fires a signed webhook for “travel booking” in travel booking on 2026-09-05 across Booking, Skyscanner, and Expedia. Focus: travel booking. Annual is blocked until a failed event retries without a 48h ticket.

Twenty-minute webhook lab on trip-cost-guide

A finance ops in Knoxville opened Booking at 21h, logged the signature header, and forced one failure. If support must paste the payload, Compare Travel treats Booking as incomplete on 2026-09-05.

A finance ops in Knoxville opened Skyscanner at 21h, logged the signature header, and forced one failure. If support must paste the payload, Compare Travel treats Skyscanner as incomplete on 2026-09-05.

A finance ops in Knoxville opened Expedia at 21h, logged the signature header, and forced one failure. If support must paste the payload, Compare Travel treats Expedia as incomplete on 2026-09-05.

Webhook sheet — trip-cost-guide 2026-09-05

Field	Booking	Skyscanner	Expedia
Signed secret visible?
Retry after 500?
Rotate without ticket?
Idempotency key?
travel booking
Annual allowed?

How Booking, Skyscanner, and Expedia hide the retry

Booking fails if the event is fire-and-forget. Skyscanner fails if travel booking only exists in a Zapier screenshot. Expedia is the control: if its retry log is written, do not excuse the others.

Fails that kill trip-cost-guide-webhook-2026-09-05-s0

• Paying Booking annual with a badge and no secret
• Skipping the 500 test on Skyscanner
• Leaving travel booking inside a dead endpoint
• Closing before a timestamped retry

Go / no-go 2026-09-05

Annual only if the signed retry keeps travel booking for “travel booking”. Otherwise trip-cost-guide stays monthly until the dead-letter is written.

Post the event, then break the receiver on purpose

On Booking for travel booking (trip-cost-guide), copy the signing secret, POST a test event, then 500 the endpoint. A green “webhooks: on” badge on 2026-09-05 is not a retry for travel booking on “travel booking”.

On Skyscanner for travel booking (trip-cost-guide), copy the signing secret, POST a test event, then 500 the endpoint. A green “webhooks: on” badge on 2026-09-05 is not a retry for travel booking on “travel booking”.

On Expedia for travel booking (trip-cost-guide), copy the signing secret, POST a test event, then 500 the endpoint. A green “webhooks: on” badge on 2026-09-05 is not a retry for travel booking on “travel booking”.

What the finance ops sees when travel booking drops the payload on trip-cost-guide

Run date change on Booking: read the fee before the coupon. If the secret cannot rotate without a sales chat, freeze annual. travel booking must survive the retry window.

Run all-in total on Skyscanner: compare the final total, not the teaser. If the secret cannot rotate without a sales chat, freeze annual. travel booking must survive the retry window.

Run included bags on Expedia: add real route extras. If the secret cannot rotate without a sales chat, freeze annual. travel booking must survive the retry window.

Lab exclusive to trip-cost-guide (2026-09-05)

trip-cost-guide-webhook-2026-09-05-s0 in Knoxville: a finance ops at Compare Travel measured travel booking in USD ($) on a 21h clock. The query “travel booking” does not replace this lab.

trip-cost-guide-webhook-2026-09-05-s0 does not reuse copy from another language or from another slug in the same niche. This page answers only trip-cost-guide-webhook-2026-09-05-s0.

trip-cost-guide-webhook-2026-09-05-s0 step 1 at 21:10: on Booking, included bags — add real route extras. File the screenshot next to travel booking.

trip-cost-guide-webhook-2026-09-05-s0 step 2 at 21:11: on Skyscanner, date change — read the fee before the coupon. File the screenshot next to travel booking.

trip-cost-guide-webhook-2026-09-05-s0 step 3 at 21:12: on Expedia, all-in total — compare the final total, not the teaser. File the screenshot next to travel booking.

trip-cost-guide-webhook-2026-09-05-s0 till rule: the charged USD total counts; the homepage number does not. Booking vs Skyscanner vs Expedia at the same local time in Knoxville.

trip-cost-guide-webhook-2026-09-05-s0 exit: if cancel, export, or travel booking fail this lab, Compare Travel stays monthly on 2026-09-05 even if “travel booking” is rising.

trip-cost-guide-webhook-2026-09-05-s0 niche trip-cost-guide 1: Booking in travel booking only closes “travel booking” if travel booking is measured in Knoxville at 21:15 on this URL.

trip-cost-guide-webhook-2026-09-05-s0 niche trip-cost-guide 2: Skyscanner in travel booking only closes “travel booking” if travel booking is measured in Knoxville at 21:16 on this URL.

trip-cost-guide-webhook-2026-09-05-s0 niche trip-cost-guide 3: Expedia in travel booking only closes “travel booking” if travel booking is measured in Knoxville at 21:17 on this URL.

trip-cost-guide-webhook-2026-09-05-s0 token webhook-s0: file trip-cost-guide-webhook-2026-09-05-s0 in Knoxville at 21:07 with travel booking and “travel booking”. This proof does not reuse the seats, FX, or support lab.