Yes. The app is a bridge between your Shopify store and your Amazon selling account, so you need the Amazon side to exist first. It does not create one for you and it cannot sell on Amazon on your behalf.
If you have not sold on Amazon before, register at Seller Central for the region you want to sell in, then come back and connect it under Settings > Amazon account.
For the price sync and Buy on Amazon features, you need a Seller Central account that the app can authorise.
For publishing listings, repricing and inventory sync, you will in practice want Amazon's Professional selling plan, because Amazon reserves bulk and programmatic listing management for Professional sellers and charges Individual sellers per item sold. This is Amazon's rule, not the app's. If in doubt, check the current terms in Seller Central for your region.
This is the single most useful distinction in the app, and they run in opposite directions.
Product Mapping links a Shopify variant to an Amazon listing that already exists, identified by its ASIN. It is how you say "this product of mine is that product on Amazon". Data then flows from Amazon into Shopify: prices, Buy Box status, links. It works on every plan, including Free. It does not create anything on Amazon.
Product Sync publishes a Shopify product to Amazon as a real listing. Data flows from Shopify out to Amazon. It is a paid feature, from Growth upwards, and it is what creates the listing in the first place.
You can use Product Mapping on its own if you already have Amazon listings and just want their prices in your store. See Product Mapping and Product Sync.
FBA means Fulfilled by Amazon. You send your stock to Amazon's warehouses and Amazon picks, packs and ships it. Amazon holds the inventory, so Amazon owns the number. In this app, FBA is read-only: you can see Amazon's available and total quantities beside your Shopify quantity, but the app never writes to them.
FBM means Fulfilled by Merchant. You hold the stock and you ship the orders yourself. Your Shopify quantity is the truth, so the app pushes it to Amazon whenever it changes.
The app works out which is which per SKU automatically. If the SKU appears in Amazon's FBA inventory it is treated as FBA; otherwise it is FBM. You do not configure this. See Inventory Sync.
No. Your Shopify prices are yours and the app does not touch them.
What it does is read the Amazon price and write it into your store as a metafield, alongside the Buy Box status and the Amazon link. That is what lets your theme show "Amazon: 24.99" next to your own price without changing your own price.
The repricer is the only feature that changes any price at all, and it changes your Amazon price only. It never writes back to Shopify. In fact it uses your Shopify price as its anchor: the floor and ceiling are percentages of it.
No, and it is built specifically to avoid one.
Two things prevent it. First, when you already hold the Buy Box the repricer holds your price and does not lower it. Undercutting yourself when you are already winning is pure margin loss, so the app refuses to do it. Second, it never goes below your price floor, which defaults to 85% of your Shopify price. If a competitor prices below your floor, the repricer stops at the floor and lets them have it.
Worth knowing honestly: the "lowest offer" the repricer looks at includes your own offer, and there is no filtering by seller, condition or fulfilment type. The floor is your real safety net, so set it deliberately. See Price floor and ceiling.
Yes. The app supports 21 Amazon marketplaces across three regions: North America, Europe and the Far East.
How many you can map depends on your plan. Every plan sets a default (home) marketplace. Beyond that, per-market overrides let you point individual Shopify markets at specific Amazon marketplaces. Free gets none, Growth gets 3, Growth + Markets gets 10, and Full gets effectively unlimited. See Market mappings and the marketplaces reference.
Usually yes. Amazon issues authorisation per region, not globally, so a European authorisation does not cover the United States. Selling in both means connecting both.
Within a region, one authorisation typically covers all the marketplaces your account is registered for. A single European connection can cover the UK, Germany, France, Italy and Spain together, because those are unified in Amazon's own account structure.
How many accounts you can connect comes from your plan. See Using multiple Amazon accounts.
Nothing. They stay live.
Uninstalling removes the app from your Shopify store and wipes the app's stored credentials and data for your shop. It does not touch Amazon. Your listings remain published, remain sellable, and remain entirely under your control in Seller Central. The app has no ability to reach back into Amazon after it is gone.
If you want your listings closed, close them before you uninstall, while the app can still do it for you. See Uninstalling and Close versus delete.
Nothing is deleted, on either side.
If your new plan is smaller than your current setup, the app shows a modal, "Your plan changed, let's fit your setup to it", and asks you to choose which Amazon accounts and which markets to keep. Anything that overflows the new plan's limits is paused, not deleted. If your new plan does not include Product Sync, Product Sync is paused automatically.
Nothing is removed from Amazon. Your listings stay live regardless. If you upgrade again later, the paused items are still there. See Managing your plan.
Your Amazon credentials are never stored by the app in a form it can read back to anyone. Your AI provider keys, if you supply your own, are stored encrypted and are never shown again after you save them. The Amazon data the app writes into your store lives in your own Shopify store as metafields, which means you own it and can export or delete it at any time. See Security and privacy.
Yes. Under Settings > AI you can supply your own key for Anthropic (Claude), OpenAI (GPT) or Google (Gemini). Doing so bypasses your plan's monthly AI allowance entirely, and your AI provider bills you directly for what you use. There is also an optional Model field if you want to pin a specific model.
If you do not want to manage a key, the built-in engine needs no setup at all and runs against your plan's monthly allowance: 50 actions on Growth, 200 on Growth + Markets, 1,000 on Full. The Free plan has no allowance, so AI needs your own key there.
Because Amazon will not accept a listing without a product type, and the app has not got one for that product yet. There is no fallback default; guessing would put your product in the wrong part of Amazon's catalogue.
Use Set type. The app suggests a type from the Shopify category and you confirm or change it. The type is stored per Shopify category and per marketplace, so setting it once fixes every product in that category. See Amazon product types.
Because its Shopify Brand (vendor) or Description is empty. Amazon requires both, so the app hard-locks the product until they exist: the checkbox, the AI tools, Apply and Push are all disabled.
Fix it in Shopify, on the product itself, not in the app. Set a vendor and write a description, save, and the product unlocks. See Required Shopify fields.
No. The app deals in products, prices, listings and stock levels. It does not store customer personal data.
It subscribes to Shopify's mandatory privacy webhooks, as every Shopify app must, but because there is no customer data to hand over or erase, those webhooks simply log and do nothing.
The one place customer information passes through at all is Fulfilment by Amazon, where a shipping address has to reach Amazon so that Amazon can deliver the parcel. That is the nature of asking someone else to ship your order.