Gray Line Worldwide is a sightseeing brand licensed to independent local operators, who run tours under the Gray Line name in more than twenty countries across the Americas, Europe and Asia Pacific. Product weights toward hop-on hop-off buses, trolleys, day excursions and transfers. For operators, it brings consumer bookings from the Gray Line website alongside trade demand from its travel agent and affiliate programs, with listings sold across Gray Line's global channels beside the local licensee's own tours.

Connecting Gray Line Worldwide to Ventrata syncs your availability and prices and delivers bookings, changes and cancellations with tickets issued automatically. Gray Line Worldwide runs on Prioticket, and receives your products through its certified integration with Ventrata's OCTO API.

To learn more about partnering with Gray Line Worldwide, visit grayline.com.

Primary website	grayline.com
Tags	Operator Reselling Others · Sightseeing & Hop-On Hop-Off
Destination markets	🌎 Global
Source markets	🌎 Global
Specialties	Hop-on hop-off, day excursions and transfers under one brand
Connection features	Availability Sync · Pricing Sync · Bookings Sync
Developed by	Prioticket (using Ventrata's OCTO API)

This reseller connection lets you sell your products through Gray Line Worldwide without managing availability, pricing and bookings by hand. Features of this connection include:

Availability Sync – Gray Line Worldwide checks your live availability in Ventrata.
Pricing Sync – Gray Line Worldwide gets your prices from your reseller pricing in Ventrata.
Bookings Sync – bookings, updates and cancellations from Gray Line Worldwide are created in Ventrata instantly, and customers get Ventrata tickets.

Creating the Gray Line Worldwide Connection

🔐 Required Role Permissions: See Connections, Modify Connections, See Connection Key

Before you begin:

You must have a commercial agreement with Gray Line Worldwide for them to sell your products. To inquire about partnering with them, contact them via grayline.com.
You must have Gray Line Worldwide created as a Reseller in Ventrata with their pricing (retail, wholesale/commission) defined correctly. Note that this API connection requires that the reseller is set to the "Bill to my account" settlement method.

In Ventrata Dashboard, go to Connections → Connections, click + New Connection, and select Gray Line Worldwide (powered by Prioticket) from the list of partners.
Select Gray Line Worldwide Reseller from the list of your resellers (must be created before creating a connection). The connection will inherit the reseller's configuration like pricing, allowed destinations, products, etc.
(Optional) You can also set the connection Name of your choosing, which may be helpful if you plan to have multiple Gray Line Worldwide connections and would like to differentiate between them more easily in the future.
Press the Create Octo Connection button.

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If needed, you can also allow or disallow products or destinations on the connection level, in addition to what you have configured on the reseller.

Mapping Products to Gray Line Worldwide

Securely share the OCTO API key shown on the connection you've created with your Gray Line Worldwide contact and ask them to map your products using Ventrata's OCTO API, with pricing (octo/pricing) enabled. Typically, it takes no longer than a few business days for the Gray Line Worldwide team to complete this.

Your Ventrata configuration is complete. You do not need to take any further steps.

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Gray Line Worldwide can access all products enabled on the connection, but you can also provide the Product and Option IDs from the connection page when contacting them to specify what to map.

Managing the Gray Line Worldwide Connection

Allow or disallow products: limit which destinations, products and options Gray Line Worldwide can access. See how to allow or disallow products.
Rename the connection to tell several Gray Line Worldwide connections apart.

Connection Features Detailed

This section is for anyone who wants to know exactly how the Gray Line Worldwide connection works: which Ventrata OCTO API calls Gray Line Worldwide makes (through Prioticket's certified integration), when it makes them, and what that means for you. Each call links to Ventrata's API documentation.

In short: Gray Line Worldwide pulls everything it needs from Ventrata. It reads your products, checks your availability (and your prices, when it asks for them), and sends bookings and cancellations. Ventrata doesn't push changes to Gray Line Worldwide, so anything you change in Ventrata reaches Gray Line Worldwide the next time it checks.

Timings are typical for Gray Line Worldwide and rounded, and they can change if Gray Line Worldwide changes how it syncs.

Product Mapping	❌	You can't map products from Ventrata. Gray Line Worldwide maps them on its side, through your account manager or Gray Line Worldwide's portal. This works as follows: Get Products (`GET /products`) – when Gray Line Worldwide sets up your connection, and whenever it refreshes its listings, it reads every product enabled on the connection, with its options and units (ticket types such as Adult or Child). Get Product (`GET /products/{productId}`) – Gray Line Worldwide re-reads a single product to pick up changes to its options, units, booking cutoffs and settings. Mapping on Gray Line Worldwide's side – Gray Line Worldwide links each Ventrata option and unit to its own listing and ticket types. Your Gray Line Worldwide account manager does this for you, or you do it in Gray Line Worldwide's own portal if Gray Line Worldwide offers one. You only share the connection's API key. Typically with Gray Line Worldwide: Gray Line Worldwide reads your full product list about every 6 hours. It re-reads each product about once a day. What this means for you: Gray Line Worldwide can only sell what it has mapped. When you add a product, option or unit in Ventrata, Gray Line Worldwide may see it on its next refresh, but it won't sell it until it's mapped. So tell your Gray Line Worldwide account manager whenever you add one.
Content Sync	✅ / ❌	Gray Line Worldwide can read your product content, such as descriptions and images, from Ventrata. This works as follows: `octo/content` capability – when Gray Line Worldwide adds it to the `Octo-Capabilities` header, Get Products (`GET /products`) and Get Product (`GET /products/{productId}`) also return your product content, such as descriptions, highlights, inclusions and images. Content changes in Ventrata reach Gray Line Worldwide on its next product refresh. Typically with Gray Line Worldwide: Gray Line Worldwide requests `octo/content`.
Availability Sync	✅	Gray Line Worldwide checks your live availability in Ventrata. Ventrata doesn't push availability changes to Gray Line Worldwide. This works as follows: Availability Check (`POST /availability`) – Gray Line Worldwide sends a product, an option and a date or date range. Ventrata answers with each bookable day or time slot, its status (`AVAILABLE`, `LIMITED`, `SOLD_OUT`, `CLOSED` or `FREESALE`), the remaining vacancies, the booking cutoff and an `availabilityId`, which Gray Line Worldwide needs to book that slot. Check at booking – when a customer books, Ventrata checks capacity again before it creates the booking, so Gray Line Worldwide can't overbook a slot that has just sold out, even if its stored availability is slightly out of date. Typically with Gray Line Worldwide: Availability Check: Gray Line Worldwide checks each product about every 2 hours, usually starting about 10 months ahead and covering 30 days per request and looks up to about a year ahead. Checks are busiest between 05:00 and 11:00 UTC, which suggests most checks are live, as customers browse Gray Line Worldwide. What this means for you: when you close a date, change capacity or sell out in Ventrata, Gray Line Worldwide shows it after its next check. For dates it checks regularly, that's within about 2 hours. Dates further ahead are usually checked less often.
Pricing Sync	✅ / ❌	Your prices come back with availability only when Gray Line Worldwide asks for them, and Gray Line Worldwide doesn't always do so. This works as follows: `octo/pricing` capability – Gray Line Worldwide asks for prices by adding `octo/pricing` to the `Octo-Capabilities` header of its requests. Without it, Ventrata sends availability with no prices at all. Availability Check (`POST /availability`) – with pricing on, each day or time slot comes back with your price per unit (ticket type): the retail price the customer pays and the net price you invoice Gray Line Worldwide, both from the reseller's pricing in Ventrata (retail and wholesale/commission). Group prices – when Gray Line Worldwide also sends how many people of each unit type are booking, Ventrata prices that exact group. This matters for Booking Size fares and other group pricing. Booking Reservation (`POST /bookings`) and Booking Confirmation (`POST /bookings/{uuid}/confirm`) – the booking comes back with its final retail and net price, so the booking in Ventrata always records the price it was sold at. Typically with Gray Line Worldwide: Gray Line Worldwide doesn't usually request `octo/pricing`, so it most likely uses prices stored on its side, which you'd keep up to date with Gray Line Worldwide by hand. ‼️ IMPORTANT – Ask for pricing to be enabled. When you ask Gray Line Worldwide to map your products, ask them to enable pricing (`octo/pricing`) as well, or switch it on yourself if you map in Gray Line Worldwide's portal. Otherwise it may be off, and Gray Line Worldwide won't receive your Ventrata prices.
Promotions Sync	❌	Your Ventrata promotions don't apply on Gray Line Worldwide. Prices on Gray Line Worldwide don't include promotions you create in Ventrata. Set up any promotions with Gray Line Worldwide directly.
Bookings Sync	✅	Bookings and cancellations made on Gray Line Worldwide are created in Ventrata instantly, and customers get Ventrata tickets. This works as follows: Hold: Booking Reservation (`POST /bookings`) – when a customer starts checkout on Gray Line Worldwide, Gray Line Worldwide sends the product, option, chosen slot (`availabilityId`) and one unit item per person. Ventrata checks capacity again and creates an `ON_HOLD` booking, which holds the places while the customer pays. If there's no longer room, Ventrata rejects the hold. Confirm: Booking Confirmation (`POST /bookings/{uuid}/confirm`) – once payment goes through, Gray Line Worldwide confirms the hold. The booking becomes `CONFIRMED` in Ventrata, and Ventrata sends back your booking reference and the tickets (one per person) or a voucher (one per booking), depending on how your product is set up, each with a QR code and a PDF link. Gray Line Worldwide gives these to the customer, who shows them at your entrance like any Ventrata ticket. Expire: if the customer doesn't finish paying, Gray Line Worldwide never confirms, and the hold expires on its own and frees the places. Cancel: Booking Cancellation (`POST /bookings/{uuid}/cancel`) – when a customer cancels on Gray Line Worldwide, Gray Line Worldwide cancels the booking in Ventrata. Ventrata accepts this only if the booking can still be cancelled and the option's cancellation cutoff hasn't passed. Otherwise it rejects the request, and Gray Line Worldwide has to contact you. Change: Gray Line Worldwide doesn't use Booking Update (`PATCH /bookings/{uuid}`), so a change most likely reaches Ventrata as a cancellation plus a new booking. Typically with Gray Line Worldwide: Gray Line Worldwide holds places for about 60 minutes while the customer pays (`expirationMinutes`). A typical Gray Line Worldwide booking is for about 2 people. ‼️ IMPORTANT – Bookings sync one way, from Gray Line Worldwide to Ventrata. If you cancel, change or rebook a booking from Gray Line Worldwide in Ventrata, for example in the Dashboard, Gray Line Worldwide isn't notified. Contact Gray Line Worldwide so the booking is cancelled or changed on their side too, or ask the customer to cancel through Gray Line Worldwide.
Pickups/Dropoff Sync	❌	Gray Line Worldwide doesn't send pickup or drop-off details with its bookings. If your products include pickups, check with Gray Line Worldwide how it collects pickup details, or arrange them with the customer.
Custom Questions Sync	❌	Gray Line Worldwide doesn't send answers to your booking questions. If you rely on booking questions, for example names or dietary needs, check with Gray Line Worldwide how it collects that information.
Extras Sync	❌	Extras and add-ons can't be booked through Gray Line Worldwide. Customers can only book your main products and options on Gray Line Worldwide. Sell extras separately, for example on arrival.
Redemption Sync	❌	Redemptions aren't reported to Gray Line Worldwide. Ventrata doesn't notify Gray Line Worldwide when a ticket is scanned or redeemed. Gray Line Worldwide only sees a redemption if it reads the booking back from Ventrata.
Pass Walkup Scanning Sync	❌	Gray Line Worldwide pass holders can't be scanned at your entrance without a booking. Customers from Gray Line Worldwide need a booking made through Gray Line Worldwide before they visit.
Gift Card Sync	❌	Ventrata gift cards can't be sold or redeemed through Gray Line Worldwide. Gift cards bought in Ventrata can't be used on Gray Line Worldwide, and Gray Line Worldwide can't sell Ventrata gift cards.

✅ supported · ✅ / ❌ limited · ❌ not supported

Good to know: limits and details of the Gray Line Worldwide connection

Delays: availability and prices reach Gray Line Worldwide only when it checks, so there's always a short delay after you change something in Ventrata.
Cancellation cutoff: Gray Line Worldwide can cancel over the API only before your option's cancellation cutoff. Later cancellations have to be agreed with you.
What Gray Line Worldwide can see: only the destinations, products and options allowed on the reseller and the connection, and enabled for sale on the Direct API source. See how to allow or disallow products.
Tickets: Gray Line Worldwide issues the Ventrata tickets or voucher it gets on confirmation, so your usual scanning and redemption work as normal.
Test bookings: Gray Line Worldwide can send test bookings while it sets up the connection. Test bookings don't use your availability and aren't invoiced.

FAQs

No products are displayed on the connection page.

Verify which destinations, products, and options are allowed on your reseller and connection. Next, confirm that your products and options are enabled for sale on the Direct API source. If the issue persists, contact our Technical Support.

My Ventrata products use Booking Size fares, and pricing isn't working correctly on Gray Line Worldwide.

After every fare change, update the product mapping to ensure the partner tier counts are synced with Ventrata. Ensure the fare is enabled for sale over Direct API.

📚 More about Ventrata connections

Partner Information

Gray Line Worldwide

1900 16th St, Ste 210

Denver, CO 80202, USA

grayline.com

Ventrata Partner ID: 019fdb6e-d3a4-7d5f-ae09-fd6d839bac26

Prioticket B.V.

Prins Hendrikkade 21

1012 TL Amsterdam, Netherlands

prioticket.com

Ventrata Partner ID: 8347e498-1afe-48e1-9d99-8b2d1e0069fb

Gray Line Worldwide: Reseller Connection