Amazon Selling Partner Application
One application that connects to your Amazon Selling Partner account and tells you the truth about it: which listings are losing you sales, what shoppers search before they buy you or someone else, what you actually keep after Amazon's fees, where a stock-out is about to suppress a SKU, and which product really earned last month's settlement. Then it fixes the content with AI and writes it back.
Amazon SP-API integrated AES-256 encrypted tokens No buyer PII accessed
How it works
Connect. Diagnose. Fix.
Three steps, and the first one takes two minutes. You authorise through Amazon's own consent screen — we never ask for your Seller Central password.
01
Connect
Authorise Heterize from Seller Central with Login with Amazon. Your marketplaces are detected automatically. Two minutes, no credentials shared.
02
Diagnose
We sync your catalogue, orders, analytics, pricing and settlement, then score every listing and rank what is actually costing you money.
03
Fix
Generate the missing content with AI, price against real net proceeds, act on the analytics, and push approved changes back to Amazon in bulk.
Features
Seven core modules, one connection.
Each module maps to a specific Selling Partner API role. Turn on the ones you need — you are only ever quoted for what you switch on.
Listing & content health
Every SKU you sell, pulled into one table and scored — so you stop guessing which listings are quietly costing you sales.
- Full catalogue sync from your Amazon listings report, refreshed on demand.
- A 0–100 quality score per listing, weighted across text (45%), imagery (40%) and A+ content (15%).
- Specific, severity-ranked issues: thin titles, missing bullets, too few images, no A+ module, suppressed listings.
- Bulk edit titles, bullets, descriptions and keywords, then write the corrections straight back to Amazon.
- Filters, saved column presets and a per-SKU detail panel for working through a backlog.
A+ content audit
A+ content is the single largest uplift most catalogues are leaving on the table. We find where it is missing and rank it by what it would be worth.
- Detects which ASINs have active A+ content and which do not.
- Feeds the A+ gap into the same quality score, so one number reflects the whole listing.
- Prioritises the ASINs where adding A+ would move revenue most, not just alphabetically.
- Pairs with the AI engine below to draft the copy blocks for the modules you are missing.
Amazon data this module uses
- Listings Items API — A+ content association on your own ASINs
Required role
Product Listing
Pricing IQ
Competitor prices are easy to find. What you actually keep after Amazon's fees is not — so we compute that instead.
- Live competitor offers and Buy Box context for every ASIN in your catalogue.
- Amazon's own fee estimates per SKU — referral, fulfilment and closing fees.
- A recommended price with the net proceeds you would keep at that price, per unit.
- Price-change history so you can see what a move actually did to margin.
- Rule-based guardrails — floor and ceiling prices you set, so no recommendation can breach your margin policy.
Amazon data this module uses
- Product Pricing API — competitive pricing and offers
- Product Fees API — Amazon's fee estimate for your own SKUs
Required role
Pricing
Orders & inventory
Orders, line items and stock in one place, so a stock-out shows up before the listing goes dark.
- Orders with full line-item detail and fulfilment status across your marketplaces.
- FBA inventory levels, with out-of-stock and low-stock detection surfaced on the overview.
- Customer returns pulled in alongside, so return rate sits next to the SKU that caused it.
- Per-ASIN order history, linked from the listing detail panel.
- Reorder point and days-of-cover forecasting from your own velocity, not a generic curve.
Amazon data this module uses
- Orders API — your own orders and line items
- FBA Inventory API — real-time FBA stock by SKU and marketplace
- FBA inventory and customer-returns reports
Required roles
Inventory and Order Tracking · Amazon Fulfillment
Settlement & finance
Amazon's settlement report tells you what you were paid. It does not tell you which product earned it. We do that.
- Settlement broken down per product: revenue, every fee line, returns, tax and net.
- Reconciles against the payments report in Seller Central, so the numbers are auditable.
- Fee drift detection — flags when Amazon's fees on a SKU move against you.
- Feeds true net margin back into Pricing IQ, so price recommendations use real settled numbers.
- Export to Excel, CSV or your accounting system's import format at period close.
Amazon data this module uses
- Finances API — financial events for your own account
- V2 settlement report
Required role
Finance and Accounting
Brand Analytics Studio
The analytics layer: Amazon's own brand reporting, rendered as dashboards a category manager can act on — search share, repeat purchase, basket behaviour and traffic, all against your own brand.
- Search Query Performance for your brand and ASINs — impressions, clicks, cart adds and purchases per query, with your share of each.
- Search Catalogue Performance — which of your ASINs win and lose on the queries that matter, week over week.
- Repeat Purchase Behaviour — how much of your revenue is returning customers, by ASIN and by period.
- Market Basket analysis — what shoppers buy alongside your products, to plan bundles and cross-sell placement.
- Item Comparison and Alternate Purchase — the ASINs shoppers viewed or bought instead of yours.
- Sales & Traffic by ASIN — sessions, unit session percentage, Buy Box percentage and conversion, trended.
- Every report is scoped to your own brand and account, exportable to Excel or CSV, and never blended with another seller's data.
Amazon data this module uses
- Data Kiosk / Brand Analytics reports — search query performance, search catalogue performance, repeat purchase, market basket, item comparison and alternate purchase, for your own brand
- Sales and Traffic business reports for your own ASINs
- Sellers API — marketplace participations, to scope every report to the right region
Required roles
Brand Analytics · Selling Partner Insights
AI flat-file engine
The part of Heterize that runs entirely on your own spreadsheets: bulk listing content, generated and formatted for Amazon upload.
- Upload a product Excel, get Amazon-ready titles, bullets, descriptions and backend keywords.
- Matches your data to the right Amazon category template and outputs a valid flat file.
- Parent/child variation builder for size, colour and pack-size families.
- Image tooling: attribute analysis, zoomable-image links, bulk link conversion and background removal.
- Runs as a queued job with live progress, cancellation and downloadable output.
Analytics products & services
What our analytics actually give you.
Heterize is an analytics product as much as a catalogue tool. These are the six analytical services we provide to Selling Partners, what each one is built from, and how it is delivered. Every one is scoped to your own brand and your own account.
Search share dashboard
Your brand's share of impressions, clicks, cart adds and purchases on every search query that returns your ASINs — ranked by the queries where you are losing the most volume, with the gap quantified in units.
Delivered as
An in-app dashboard, a weekly emailed digest and an Excel export.
Query-to-ASIN opportunity report
Maps Search Catalogue Performance onto your own catalogue so you can see which ASIN should be winning a query and is not, and whether the cause is content, price, imagery or stock.
Delivered as
An in-app report with a per-query action list that hands straight to the listing editor.
Repeat purchase & cohort view
Repeat Purchase Behaviour rendered as cohorts: what proportion of each period's buyers came back, which ASINs drive re-order, and the revenue that depends on returning customers.
Delivered as
A live dashboard, plus a quarterly retention review with our analysts.
Basket & cross-sell planner
Market Basket analysis turned into concrete bundle and variation recommendations — which of your products are bought together, and which complements you do not yet stock.
Delivered as
An in-app planner with an exportable bundle brief for your merchandising team.
Competitive position tracker
Item Comparison and Alternate Purchase data showing what shoppers considered instead of you, tracked over time so a losing position is visible early rather than at quarter end.
Delivered as
An in-app tracker with configurable alerts on position loss.
Executive performance pack
Sales and traffic by ASIN — sessions, conversion, Buy Box percentage, unit session percentage — combined with settlement data so the growth story and the margin story sit on one page.
Delivered as
A monthly PDF and Excel pack, produced automatically for your account.
How we handle brand analytics data
Brand analytics data is used for one purpose only: producing the analysis above for the Selling Partner whose account it came from. It is stored in that seller's isolated scope, shown only to users that seller has authorised, and deleted when they disconnect. We do not aggregate it across sellers, we do not publish, sell, licence or redistribute it in any form — including aggregated or anonymised — and we do not use it to compete with Amazon or with any other Selling Partner. Our use of this data is consistent with sections 4.4 and 4.5 of the Amazon Acceptable Use Policy and with the Data Protection Policy.
Operations, logistics, messaging & tax
The rest of the operating surface.
Beyond the core modules, Heterize covers the day-to-day operational work that runs on the same connection. Each capability below is tied to one Selling Partner API role on our Solution Provider Profile.
FBA fulfilment control
Amazon FulfillmentShipment planning and inbound tracking for everything you send into FBA, with the resulting stock position wired back into the inventory dashboard.
- Create and track inbound FBA shipments, with carton, box-content and label status visible per shipment.
- Multi-Channel Fulfilment orders raised from Heterize for your off-Amazon channels, with tracking pulled back in.
- Inbound eligibility and prep-requirement checks before a shipment is committed.
- Removal and disposal order status alongside the SKU it belongs to.
Shipping & merchant fulfilment
Amazon LogisticsFor the orders you fulfil yourself: rate shopping, label purchase and tracking, without leaving the order screen.
- Get eligible shipping services and rates for a merchant-fulfilled order.
- Buy and print the label, and write the shipment and tracking number back to Amazon automatically.
- Cancel or reprint a label when a pick changes, with the order state kept in sync.
- Delivery tracking surfaced on the order, so late shipments are visible before they become a metric problem.
Warehousing & distribution (AWD)
Amazon Warehousing and DistributionUpstream inventory in AWD treated as part of the same stock picture as FBA, so replenishment decisions use total available units.
- AWD on-hand and inbound quantities shown next to FBA stock for the same SKU.
- Inbound shipment creation and status tracking into AWD.
- Replenishment suggestions from AWD to FBA based on your own sales velocity and cover targets.
- Alerts when AWD cover falls below the lead time your reorder policy assumes.
Direct-to-consumer shipping
Direct-to-Consumer ShippingFor sellers running direct-to-consumer shipments through Amazon's shipping network, the same label, tracking and cost visibility as the rest of the order book.
- Create direct-to-consumer shipments and retrieve rates and labels.
- Track shipment progress and surface exceptions on the order timeline.
- Shipping cost attributed to the SKU and the order, so it lands in the margin calculation.
- A consolidated view of D2C, FBA and merchant-fulfilled shipments in one queue.
Buyer messaging
Buyer CommunicationOrder-related messages to buyers, sent through Amazon's own messaging system and always within Amazon's communication guidelines.
- Send permitted order-related messages — shipment updates, warranty and instruction documents, issue resolution.
- Templates reviewed against Amazon's communication policy before they can be used.
- A full audit trail of what was sent, to which order, and by which of your users.
- No marketing content, no external links, and no messages outside the permitted order-related set.
Review & feedback requests
Buyer SolicitationAmazon's own Request a Review action, scheduled inside the eligible window, at a rate you control.
- Solicitation sent via Amazon's official Request a Review operation — never a custom message.
- Automatic eligibility-window checks, so no request is attempted outside the permitted period.
- Per-SKU and per-marketplace rules — exclude problem SKUs, or throttle volume.
- Reporting on requests sent versus reviews and feedback received.
Tax invoicing
Tax InvoicingInvoice generation and upload for the marketplaces that require a seller-issued invoice, done as part of order processing rather than as a month-end scramble.
- Generate compliant invoices for orders in marketplaces where invoicing is required.
- Upload the invoice document against the order through Amazon's invoicing operations.
- Track which orders still have an invoice outstanding, with an ageing view.
- Bulk export of issued invoices for your accountant or auditor.
Tax remittance & reporting
Tax RemittanceMarketplace-collected tax separated from your own liability, so what you owe and what Amazon already remitted are never confused.
- Tax collected and remitted by Amazon shown separately from seller-remitted tax.
- Per-jurisdiction summaries built from settlement and tax report data.
- Reconciliation of tax lines against the settlement report for the same period.
- Period exports formatted for your filing process.
Notifications & alerts
Notifications in Seller CentralEvent-driven rather than poll-driven: Amazon tells us when something changed, and Heterize reacts in seconds instead of on the next sync.
- Subscribe to the notification types your enabled modules need — order status, listing changes, fee promotions, report readiness.
- Alerts routed to email or in-app, with per-user rules on what is worth waking someone for.
- Near-real-time catalogue and order updates without hammering the API with polls.
- A visible subscription list, so you can see exactly which notification types are active on your account.
App & connection management
AppManagementThe plumbing that keeps your authorisation healthy — visible to you, not hidden behind a support ticket.
- Connection health: token validity, last successful sync and any authorisation error, per marketplace.
- Guided reconnection when an authorisation lapses, without losing your historical data.
- One-click disconnect that revokes the token and deletes the data held for that account.
- Rotation and lifecycle management of the application's own credentials, handled server-side.
Account & marketplace insights
Selling Partner InsightsThe first call we make after you authorise, and the one that keeps every later call pointed at the right region.
- Detects your marketplace participations automatically at connection time.
- Account type and selling-plan context, so the app only offers features your account supports.
- Multi-account support for agencies, with each seller account isolated from every other.
- Region routing for every subsequent API call across North America, Europe and the Far East.
Data access
Exactly what we read, and why.
Heterize requests the minimum set of Selling Partner API roles the features above require. Here is the whole list, role by role, in plain language — one row for every role on our Solution Provider Profile.
| SP-API role | What we read | Why we need it |
|---|---|---|
| Selling Partner Insights | Which marketplaces your account participates in, and your seller account identity. | To detect your marketplaces automatically at connection time and route every later call to the right region. |
| Product Listing | Your listings, their attributes, images and A+ association; merchant listing and defect reports. | To score listing quality, surface suppressed and incomplete listings, and write your approved corrections back. |
| Pricing | Competitive offers for the ASINs you sell, and Amazon's fee estimates for your SKUs. | To recommend a price and show the net proceeds you keep after Amazon's fees. |
| Inventory and Order Tracking | Your orders and line items, FBA inventory levels and customer returns. | To show fulfilment status, catch stock-outs before they suppress a listing, and attribute returns to SKUs. |
| Amazon Fulfillment | Your FBA inbound shipments, shipment contents and status, Multi-Channel Fulfilment orders, and removal orders. | To plan and track inbound shipments into FBA and raise Multi-Channel Fulfilment orders from inside Heterize. |
| Amazon Warehousing and Distribution | Your AWD inbound shipments and on-hand inventory quantities. | To show upstream stock next to FBA stock and recommend AWD-to-FBA replenishment from your own velocity. |
| Amazon Logistics | Shipping services and rates for your merchant-fulfilled orders, and the labels and tracking you purchase. | To rate-shop, buy and print labels, and write the tracking number back to your order automatically. |
| Direct-to-Consumer Shipping | Direct-to-consumer shipment rates, labels and tracking for your own shipments. | To create and track D2C shipments in the same queue as your other fulfilment, with cost attributed per SKU. |
| Brand Analytics | Amazon's brand analytics reporting for your own brand: search query performance, search catalogue performance, repeat purchase behaviour, market basket, item comparison and alternate purchase; plus sales and traffic by ASIN. | To produce the analytical dashboards and reports described in the Analytics section — search share, retention, basket and competitive position — scoped to your own brand and shown only to you. |
| Finance and Accounting | Financial events and settlement reports for your account. | To reconcile payouts per product and compute true net margin. |
| Tax Invoicing | Order and invoice status for marketplaces where a seller-issued invoice is required, and the invoice documents you upload. | To generate and file compliant invoices against your orders and track which orders still need one. |
| Tax Remittance | Tax collection and remittance detail on your orders and settlements. | To separate marketplace-collected tax from your own liability and produce per-jurisdiction summaries. |
| Buyer Communication | Which message types are permitted for an order, and the messages your team sends through Amazon. | To send permitted order-related messages inside Amazon's messaging system, with a full audit trail. |
| Buyer Solicitation | Solicitation eligibility for your orders. | To send Amazon's own Request a Review action inside the eligible window, at a rate you control. |
| Notifications in Seller Central | Notification subscriptions and the event payloads Amazon sends for your account. | To react to order, listing, fee and report events in near real time instead of polling the API. |
| AppManagement | The authorisation and connection state of this application on your account. | To show connection health, guide reconnection when a token lapses, and rotate our own application credentials safely. |
And what we never do
- We do not request the Restricted Data (PII) role. Buyer names, addresses, emails and phone numbers are never retrieved or stored.
- We do not use your data to train AI models, and we do not pool it with other sellers' data.
- We do not sell, licence, resell, redistribute or publish any Amazon Information, aggregated, anonymised or otherwise.
- We do not use Brand Analytics data to compete with Amazon or with another Selling Partner, and we never surface one seller's analytics to another.
- We do not write anything to your Amazon account except changes you explicitly review and approve in the app.
- We do not send marketing messages to buyers. Buyer contact is limited to Amazon's permitted order-related message types.
Security
Built to Amazon's data protection policy.
Your Amazon connection is the most sensitive credential you will ever hand a third party. We treat it that way.
OAuth, never passwords
You authorise through Login with Amazon from Seller Central. We never see, ask for, or store your Amazon password.
Tokens encrypted at rest
Amazon refresh tokens are encrypted with AES-256-GCM before they touch the database, and are never returned by any API response or written to a log.
Encrypted in transit
Every connection — browser to us, and us to Amazon — is TLS. There is no unencrypted path for your data.
Isolated per seller
Your data sits in its own row-level-secured scope. One seller's credentials cannot read another seller's catalogue, orders, analytics or settlement.
Least-privilege access
Access to Amazon Information is granted by job function, reviewed regularly, protected by multi-factor authentication, and logged for audit.
Incident response
A documented incident response plan with named roles, reviewed every six months. Any security incident involving Amazon Information is reported to security@amazon.com within 24 hours of detection.
Disconnect means deleted
Disconnecting your account revokes the token and cascade-deletes the listings, orders, analytics and settlement data we held for it.
Only the roles we use
We request only the roles the features on this page need. No Restricted PII role, and no role we do not actively use.
Full detail on what we store, how long we keep it and how to have it deleted is in our privacy policy, which includes a dedicated section on Amazon Information handling.
Pricing
Quote-based. Stated in writing, before anything is billed.
There is no fixed price list, because a 200-SKU brand on one marketplace and a 40,000-SKU distributor on five are not the same product. So instead of a made-up number, here is the whole pricing scheme: what your quote is based on, every fee that can ever appear on an invoice, and every fee that never will. Complete the request-a-quote form below and we send an itemised written quote within one business day.
Your quote is priced on four things
Catalogue size
How many SKUs we sync and score. A 200-SKU brand and a 40,000-SKU distributor are different pieces of work.
Marketplaces
Each additional Amazon marketplace adds its own sync, its own fee model and its own settlement stream.
Modules you turn on
Take the whole engine or only the parts you need — listings, analytics, pricing, orders, fulfilment, tax, flat-file — priced per module.
AI generation volume
How much listing content you generate each month. Light users pay materially less than teams relisting continuously.
Every fee that can exist
This is the complete fee schedule for Heterize AI Engine. There are no charges outside this table, and any figure in your quote is fixed for the length of your term.
| Fee | How it is charged | Detail |
|---|---|---|
| Platform subscription | Quoted — fixed monthly fee | One fixed monthly figure covering the modules in your quote, held for the length of your term. Billed monthly or annually in advance, in INR or USD. |
| Onboarding & first sync | Included — no separate fee | Guided connection, first catalogue sync and team training are part of every quote. We do not charge a separate implementation fee. |
| AI content generation | Quoted — included up to a stated monthly volume | Your quote states the monthly generation volume included. If you expect to exceed it we quote the higher band up front; we never bill an overage after the fact without telling you first. |
| Additional marketplaces or modules | Quoted — priced before they are switched on | Adding a marketplace or a module produces a revised written quote that you accept before anything changes. Nothing is enabled and billed silently. |
| Support | Included — no separate fee | Email support with a one-business-day response target is included for every user on your account, for the whole term. |
| Data export and exit | Free | Export your data to Excel or CSV at any time, including on the day you leave. There is no exit fee and no charge to disconnect. |
What you will never be charged
- No percentage of your Amazon revenue, ever
- No per-order or per-transaction fee
- No per-seat charge — unlimited users on your account
- No setup or implementation fee
- No usage overage billed after the fact
- No auto-renewing trial, and no card taken before you accept a quote
Included in every quote
- Guided onboarding and first catalogue sync, done with you
- Unlimited users on your account — we do not charge per seat
- All marketplace syncs for the marketplaces in your quote
- Email support with a one-business-day response target
- Product updates and new modules at no extra cost during your term
- Your data exportable to Excel or CSV at any time
No surprises
Your quote is a fixed monthly figure for a fixed term. There are no per-order fees, no percentage of your Amazon revenue, no per-seat charges, and no usage overage billed after the fact — if you outgrow your band we tell you before anything changes. Nothing is charged until you accept a quote in writing.
Request a quote
Tell us your catalogue size, marketplaces and the modules you want. We reply within one business day with an itemised written quote — no obligation, no card, no auto-billing.
Support
A real person, within a business day.
Onboarding is included in every quote — we sit with you for the first connection and the first catalogue sync, and we do not leave until the numbers reconcile against Seller Central.
Questions
Before you connect.
Amazon Selling Partners on a Professional selling plan who manage their own catalogue — brands, private-label sellers, distributors and the agencies that run catalogues on their behalf. It is most useful above roughly 100 SKUs, where manual auditing stops being realistic.
Get started
See what your catalogue is actually doing.
Send us your shape — SKUs, marketplaces, the modules you care about — and we will come back with a written quote and a walkthrough of your own catalogue.
Heterize AI Engine is an independent application built by Sunyata Ventures. Sunyata Ventures is not affiliated with, endorsed by or sponsored by Amazon. Amazon, Selling Partner API, Seller Central, FBA and all related marks are trademarks of Amazon.com, Inc. or its affiliates.