Connect Amazon to invtri

What Amazon requires first

• A Professional selling account: Amazon says “you must have a professional selling account to develop SP-API private seller applications”¹.
• The primary account user to do the set-up: “You must be a primary account user to complete registration”¹.
• The Amazon channel on your invtri licence: a premium channel, added as a one-off unless your package includes it. The Pricing page shows the price.

The steps below use Develop Apps in Seller Central, as the step-by-step guide in the app does. Amazon may send you on from Develop Apps to its Solution Provider Portal².

Register as a private developer

1. 1

   Open Develop Apps

   In Seller Central, open the menu, select Apps and Services and choose Develop Apps³.

2. 2

   Choose private access

   Fill in Contact Information. Under Data Access, choose “Private Developer: I build application(s) that integrate my own company with Amazon Services APIs”³.

3. 3

   Finish the form

   Select Roles, enter Use Cases and Security Controls, tick to accept Amazon’s agreement and policies, and choose Register³. Amazon asks you to keep your developer profile “under the 500-word limit” and to write original content, not copied from its policies¹. For the choices that matter to invtri, follow the step-by-step guide in the app.

4. 4

   Wait for the review

   Amazon evaluates your profile and creates a case with next steps. If it asks for more information, “respond within five days to prevent case closure”³.

Create your app and copy its keys

1. 1

   Add an app client

   In Develop Apps, choose Add new app client and complete the form. If Sellers and Vendors check boxes appear, tick Sellers⁴.

2. 2

   View the LWA credentials

   Under Develop Apps, find your app, choose Edit app, then View under LWA credentials. This shows the client identifier and client secret⁵.

3. 3

   Authorise your own account

   Open the Authorize application page from Develop Apps in Seller Central. Choose Authorize app for your selling account and copy the refresh token⁶.

Add Amazon to invtri

1. 1

   Enter your details

   Enter your Seller ID and your app’s keys in invtri, following the step-by-step guide in the app.

2. 2

   Start selling

   invtri lists your products, keeps stock and price up to date, imports orders and sends tracking back. Refunds and cancellations are done in Seller Central.

Keep the connection working

Amazon says: “You must rotate your LWA credentials (client secrets) for all applications every 180 days.” It warns you 90 days before the deadline, and the old secret keeps working for seven days after you rotate⁷. Update the secret in invtri when you do.

You don’t need a new refresh token after rotating, because “Refresh tokens are linked to the LWA client identifier”⁸.