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Interparcel

OnBuy orders. Ready to send.

Connect OnBuy to Interparcel to import orders, compare couriers, print labels and send tracking details back to your marketplace from one free shipping workspace.

Connect your OnBuy store See how it works
£0 platform and subscription fees
Compare couriers in Shipping Manager
Markets connect each marketplace separately
Support from our UK-based parcel team

A faster route from sale to shipment

From OnBuy sale to booked delivery in three steps

Connect your seller account, bring orders into Shipping Manager and choose a suitable delivery service.

1

Connect your OnBuy store

Enter your Live Consumer Key and Secret Key, name your connection and choose an enabled OnBuy marketplace.

2

Bring orders into one queue

Use Import Orders in Shipping Manager to bring in orders awaiting despatch, including the remaining items from partially despatched orders.

3

Book, print and update

Compare services, book your parcels and print labels. Enable automatic despatch updates to send courier and tracking details back to OnBuy.

Built for OnBuy sellers

Your marketplace connected. Your shipping in one place.

Connect with your OnBuy API keys, then manage orders and deliveries in Shipping Manager.

  • Marketplace connections
  • Order imports
  • Label printing
  • Tracking updates
A simple connection

Use your Live OnBuy API keys

Enable API access in your seller control panel, then copy the Consumer Key and Secret Key from the Live Keys section. Select the marketplace you want to connect.

View setup guide
One connection per marketplace

Keep your OnBuy markets organised

Add a separate connection for each enabled marketplace. Give each one a clear name and import its orders into the same Shipping Manager workspace.

See which orders are supported

Built for busy OnBuy sellers

More control over every customer delivery

Give each OnBuy order the right balance of cost, speed and support, whether it is heading across town or further afield.

Powerful shipping tools, without another monthly bill

Shipping Manager is free for Interparcel customers, with no subscription or per-order platform fees.

£0

Keep your marketplace orders organised

Bring OnBuy orders into one queue, ready for address checks, parcel details and courier selection.

Keep customers informed

Send courier and tracking details back to OnBuy when automatic despatch updates are enabled.

Real help from parcel experts

When you need a hand, speak with our experienced UK-based customer service team by phone, email or live chat.

One connection, more capability

What Your OnBuy Integration Handles

Practical tools for importing orders, preparing parcels and managing your daily OnBuy shipping.

OnBuy order imports

Import delivery details, products and remaining quantities for eligible OnBuy orders without re-keying them.

Marketplace connections

Connect the marketplaces enabled for your seller account, with a separate named connection for each one.

Courier comparison

Compare courier prices and service options, then choose a suitable delivery for each order.

Bulk label printing

Book multiple parcels and print labels together to keep busy dispatch days moving.

Automated shipping rules

Use Rule Manager to apply delivery preferences based on your own shipping criteria.

Carrier and tracking updates

Return courier and tracking details for imported items included in your booking when automatic despatch updates are enabled.

Smart Boxing

Pack multi-item orders into fewer parcels

Use Smart Boxing to plan how items from the same OnBuy order fit into your saved box sizes. Where product weights and dimensions are available from your Interparcel inventory, it can suggest a parcel combination before you book. Review the recommendation and parcel details before confirming.

Advanced Shipping Manager

Run OnBuy fulfilment from one clear shipping workspace

Keep imported order details, address checks, courier options and labels together so your team can prepare deliveries with fewer repeated steps.

  • Import orders from your connected marketplaces
  • Validate and correct delivery addresses
  • Compare courier prices and transit speeds
  • Send courier and tracking updates to OnBuy
Explore Shipping Manager
Interparcel Shipping Manager showing imported ecommerce orders
Imported orders, ready to send
Free for everyone No subscription or usage fee - just pay for the deliveries you book.

More delivery choice

One OnBuy connection.Delivery options in one place.

Compare delivery options for your OnBuy orders and choose a service that suits each parcel, destination and delivery promise.

OnBuy shipping FAQ

Answers before you connect

Find out how to connect OnBuy, import orders and send despatch updates.

Contact us

It connects your OnBuy seller account to Shipping Manager so you can import eligible orders, compare couriers, book deliveries and print labels. Enable automatic despatch updates to send the courier and tracking details back to OnBuy for the imported items included in your booking.

One Shipping Manager. All your selling channels.

Bring orders from your favourite ecommerce platforms into one streamlined workflow.

Ready when you are

Bring your OnBuy orders into one shipping workspace.

Connect your marketplace, import orders and book delivery services with Interparcel.

Connect to OnBuy