HELP CENTRE

Connect eBay to invtri

invtri connects to eBay through keys you create yourself in the eBay Developers Program: an App ID, a Cert ID and a RuName. You then sign in to eBay to approve the connection. invtri can list on eBay in the UK, Germany, France, Italy, Spain and the US.

Before you start

Besides your eBay seller account, you need an eBay Developers Program account. That is where the keys are made: the first step in eBay’s guide to creating them is to sign in to it1.

Postage, payment and return policies come from your eBay account, so set them up in eBay before you connect.

Create a Production keyset

  1. Open Application Keys

    Sign in to your eBay Developers Program account, go to the Application Keys page and enter a name for your application1.

  2. Create the keyset

    Under Production, click Create a keyset. It then appears on the Application Keys page and on your My Account dashboard1.

  3. Note the App ID and Cert ID

    Copy both from the Production keyset. invtri asks for them when you connect.

Create your RuName

  1. Open User Tokens

    On the Application Keys page, click User Tokens next to the Client ID for Production, then open Get a Token from eBay via Your Application2.

  2. Add a redirect URL

    If eBay says “You have no Redirect URLs. Click here to add one.”, click the link. Confirm the legal address for your business or primary contact, then choose Continue to create RuName2.

  3. Fill in the details

    eBay asks for a Display Title, which appears on its Grant Application Access page, a Privacy Policy URL, an Auth Accepted URL and an Auth Declined URL2. For the addresses to use, check your invtri onboarding manual or email [email protected].

  4. Copy the Production RuName

    Each application gets one RuName for Sandbox and one for Production, and tokens work only in the environment they were made for2. Copy the Production one.

Connect eBay in invtri

  1. Enter your keys

    In invtri, add eBay as a channel, choose the country, enter your App ID, Cert ID and RuName, and add the address your items ship from.

  2. Sign in to eBay

    Sign in to eBay and agree to give access on eBay’s Grant Application Access page3. Back in invtri, pick your postage, payment and return policies.

  3. Let it run

    invtri lists your products and keeps stock and price up to date. It brings in orders every 15 minutes, sends tracking back to eBay and lets you refund from invtri.

Questions

How often will I need to sign in to eBay again?

eBay’s refresh token lasts 47,304,000 seconds, about 18 months3. eBay asks you to agree again when it expires or the app’s scopes change, and revokes it if you change your eBay user name or password3.

Can I fulfil eBay orders from my Amazon FBA stock?

Yes, with the Amazon channel and the Amazon FBA & MCF add-on. invtri blocks Amazon Logistics by default on eBay orders, so deliveries stay within eBay’s carrier rules.

Can I list on more than one eBay site?

Yes: eBay UK, Germany, France, Italy, Spain and the US. All are under your eBay channel: connect each country you sell in.

Sources

Last reviewed on 9 November 2026.

  1. Creating the eBay API keysetseBay Developers Program, accessed 8 November 2026
  2. Getting your redirect_uri valueeBay Developers Program, accessed 8 November 2026
  3. OAuth tokenseBay Developers Program, accessed 8 November 2026

Still stuck?

Licence holders can email [email protected]. We reply within 1 to 2 business days.