Nexus Seller Platform — Amazon advertising, pricing and inventory software

Who it is for

Brand owners

Private-label sellers on Amazon in Europe, the United States and Australia who want their advertising, pricing and stock managed with clear rules instead of spreadsheets.

Agency clients

Brands whose Amazon Ads we manage: they see in the platform exactly what is being changed in their account, why, and with what result.

Teams

Several people working on the same brand — owner, partner, PPC manager — each with their own login and a viewer or editor role decided by the account owner.

Access is by sign-up: the seller requests access, we create their workspace and send a secure connection link. Plans start at $149 per brand per month — see pricing.

What the platform does

Real screens from the platform running on our own brand, Lamina Care (interface in Spanish; product names, ASINs and monetary values anonymised).

Amazon Ads

Advertising performance and automated bid rules

Product → campaign → keyword → search term in one table, per marketplace.
Profitability target (TACoS) per product and country; the target ACoS is derived from it.
Rule modules that run every morning: cut spend without sales, slow down expensive keywords, raise bids on what converts, clean up search terms.
Each module can be switched on or off, run in automatic mode or only propose changes for approval, and be limited to chosen countries and products.
Full change history with before/after values and one-click revert, plus an emergency brake that stops all automatic changes if their volume looks abnormal.

Advertising performance per product in Nexus Seller Platform

Automation you control

Rule modules with on/off, mode and scope

The seller decides where the automation acts and whether it applies changes directly or leaves them as proposals. Nothing is changed outside the scope they choose.

Rule modules with on/off switches and automatic or proposal mode

Inventory

Stock radar and reorder planning

FBA stock, inbound units, the seller's own warehouse and open purchase orders, projected day by day.
Sales velocity corrected for stock-outs and Amazon events; seasonality from the sales history.
The date each product has to be reordered, including factory lead times and holidays, and e-mail alerts.
Advertising warnings when a product is about to run out of stock.

Listings

Listing review against the market

CTR and conversion compared with the market average for the same searches (Brand Analytics).
Title, bullet points, images, video and A+ checked against Amazon's rules.
Review topics of the product and of its competitors.
Editing of titles, bullets and images, sent to Amazon only after the seller confirms.

Pricing

Price floor, ceiling and target per product and marketplace, step-by-step price increases that only continue while sales hold, competitor price and Buy Box monitoring, and margin with Amazon's real fees.

Subscribe & Save

Subscribers, subscription revenue and their evolution per product and country, with an alert when new subscriptions slow down.

Returns and profitability

Return rate and reasons per product and country, items eligible for reimbursement claims, and net margin per product after Amazon fees and advertising.

How a seller connects

The connection always goes through Amazon's own authorisation pages. The seller sees exactly which permissions are requested and can revoke them at any time.

Workspace and link

We create the seller's workspace and send them a private connection link, valid for 14 days. The page shows our privacy policy, which they must accept before connecting.

Authorise on Amazon

"Connect Seller Central" and "Connect advertising" take the seller to Amazon's sign-in and consent page (OAuth). We never see or store their Amazon password.

Data in the same day

The platform imports the sales history, stock, listings and advertising data, and from then on updates every morning. Team members sign in with their own Google account.

To disconnect, the seller can revoke the authorisation from Seller Central (Apps and Services → Manage Your Apps) or from Amazon Ads, or ask us. Access tokens are deleted immediately.

Amazon data we use, and why

Only the seller's own account data, only for the features above. We do not request restricted roles and we never access buyers' personal information.

Selling Partner API role	What the platform uses it for
Product Listing	Read and, when the seller confirms, update their own listings (titles, bullets, images, attributes); show listing issues reported by Amazon.
Pricing	Read and update the seller's own prices and sale prices; monitor competitor offers and Buy Box for the price features.
Inventory and Order Tracking	Inventory levels, inbound shipments and order reports without buyer data, for stock planning and sales velocity.
Amazon Fulfillment	FBA inventory, returns and Subscribe & Save reports. No shipments or labels are created.
Finance and Accounting	Fees and reimbursements to calculate real profitability per product.
Selling Partner Insights	Sales and traffic reports, marketplace participation and account information.
Brand Analytics	Search query performance and search terms, to compare CTR and conversion with the market and guide advertising.
Amazon Ads API	Campaigns, keywords, targets and their reports; bid, status and campaign changes made by the rules or by the seller.

Not requested: Direct-to-Consumer Shipping, Tax Invoicing, Tax Remittance, Professional Services, buyer communication or any role giving access to buyer personally identifiable information.

How seller data is protected

Each seller's data belongs to that seller. It is used only to provide the service to them, never sold, never shared with other clients and never used to train third-party models.

Encryption in transit: all traffic, to Amazon and to the platform, over HTTPS with TLS 1.2 or higher.
Encrypted tokens: Amazon refresh tokens are stored encrypted with AES-256-GCM; the key is kept outside the database. Tokens never appear in logs or source code.
Isolation between sellers: every read checks the user's permission inside the same database query. A user without access to a brand gets "not found".
Access control: sign-in only for invited accounts, viewer and editor roles per brand, multi-factor authentication on all administrator accounts.
Encrypted storage and backups: data hosted in the EU (Paris) on encrypted volumes, with continuous encrypted backups.
Deletion: access tokens are deleted as soon as the seller disconnects; the seller's Amazon data is deleted within 30 days of the end of the service, unless the law requires otherwise.
Every change is traceable: who changed what in the seller's account, when, and the value before and after.
Incident response: documented plan reviewed every six months; any incident involving Amazon information is reported to Amazon (security@amazon.com) within 24 hours.

Full details in our privacy policy and terms of service.

One place to run advertising, pricing and stock on Amazon.