New product listings on Amazon

Access: Catalog → Products → Publish changes → New listings pending

With Epinium you can start selling on Amazon products that are not in your account yet: an offer of yours on a product that already exists, a new product or a whole variation family. You ask your AI assistant connected through the Epinium MCP (Claude, ChatGPT and other compatible ones), or your integration does it with the API. It finds the product, checks it against Amazon's rules and leaves it saved in Epinium as a pending new listing.

Nothing reaches Amazon without you

A pending new listing does not go out to Amazon until you publish it, from Publish changes or by asking the assistant after seeing the list. New listings are created from the assistant or the API, not from the app; in the app you review them, fix them and publish them.

What new listings you can create

Type	What it is	Seller	Vendor
Offer on a product that already exists	A SKU of yours on an ASIN that is already in Amazon's catalog. You only set up the offer: price, condition, stock and how it is shipped	Yes	No: on Vendor you create the whole product, even if it is already on Amazon
New product	A product that is not on Amazon, with its whole listing. Amazon gives it a new ASIN	Yes	Yes
Variation family	A parent and its children, for example a t-shirt in several sizes and colors	Yes	Yes

New products and families are only for your brand: Amazon refuses to create ASINs for a brand your account has no permission for. Only create new listings for products that exist and that you sell, because an ASIN is never deleted from Amazon's catalog.

How it works

1. Find. For an offer, the assistant looks up the product in Amazon's catalog by its ASIN, EAN, UPC or GTIN, in the marketplace you tell it. For a new product, it suggests its product type from the name and you choose.
2. Validate. It checks the new listing against Amazon's rules for that product type and that marketplace, and then with an Amazon preview that publishes nothing. If something is missing, it tells you what and which values Amazon accepts.
3. Save. It saves it as a pending new listing. Before that it asks Amazon again and saves nothing Amazon would reject.
4. Publish. You decide when. Amazon processes it and, once it accepts it, the product appears in your Epinium catalog, usually within minutes, although it can take up to two hours.

What you need

• Your Amazon account connected in Settings → Connections, Seller or Vendor. On Vendor, with at least one vendor code added to the connection.
• Your assistant connected to the MCP, or an API key.
• Permissions: Catalog on View to search and validate, and on Edit to save. For the assistant to publish as well, also Publish to Amazon on Edit; without it, you publish from the app. A key or an authorization you already had does not receive new permissions: raise its level in Settings → API Keys or authorize the assistant again in Settings → MCP.
• A Business or Master plan to save and publish. On Free and Guru the assistant can search and validate, but not save.
• Enough credits, explained in How much it costs.

How to ask for it

An offer on a product that already exists

Tell it which product, in which marketplace and with which SKU. The assistant will ask you what only you can decide:

• The SKU. It always asks you for it, and if it suggests one you confirm it. It has to be new in that marketplace: to change a listing you already have, you edit it (see What you can change on a listing). The same SKU can be another new listing in another marketplace.
• How it is shipped. If you ship it yourself, it needs the units and a shipping template from your Seller Central account: the assistant shows you the ones you have so you can choose. With FBA it takes no units or template, and it cannot be bought until the stock reaches Amazon's warehouses.
• What Amazon also asks for. Depending on the product type, Amazon requires declarations such as those on dangerous goods or batteries. They are your legal declarations, so the assistant never picks the value for you.
• The restrictions. If the brand or the category needs approval in Seller Central, it warns you before going on. On a generic-brand ASIN your account has never contributed to, Amazon does not accept offers.

I want to sell ASIN B0XXXXXXXX on amazon.es with SKU LUM-LAMP-01, new, at €29.90, fulfilled by Amazon (FBA). Check it with Amazon and save it, but don't publish it yet.

A new product

Give it whatever you have on the product: title, bullet points, description, images, the EAN and the price. Amazon asks for the whole listing, and almost always for more data than you bring:

• The assistant fills in what is already written. The material, the care instructions or the closure are usually in the title, the bullet points or the description, and it takes them from there. If you already sell the same product in another marketplace, it completes whatever is missing with that listing and translates what it copies.
• It asks you the rest in a single message, with what it has filled in and where each value comes from, so you can review it before saving.
• It needs an EAN registered with GS1 under your brand's name, or a GTIN exemption approved for your brand in Seller Central.
• The images, at public addresses or uploaded to the box the assistant shows you.
• The ASIN comes later: Amazon assigns it a few minutes after accepting the new listing.

Create a new listing on amazon.es for this lamp from my brand Lumio with SKU LUM-DESK-02. I'm sending you the title, the bullet points, the description, the EAN and three images. Use them to fill in what Amazon asks for and ask me about the rest before saving.

A variation family

A family is a parent, which is not sold, and its children, which are the products people buy:

• The variation theme says how the children differ: size, color, size and color, capacity… Each product type accepts its own in each marketplace, and the assistant suggests one that tells all the children apart.
• The parent only carries the common data: brand, title, bullet points and description. It has no price, stock or EAN.
• Each child carries its SKU, its EAN, its value for each attribute of the theme (for example, "M" and "Blue") and its offer.
• The order does not matter. The assistant can validate and save the children before the parent: no child goes out to Amazon without it.

Create a new listing on amazon.es for the Lumio Basic t-shirt in sizes S, M and L and in white and black. I'm sending you a spreadsheet with the SKU, the EAN, the size, the color and the price of each one. Create the family, validate one size first and ask me whatever is missing before going on with the others.

Many new listings at once

Hand it a spreadsheet with one row per new listing, or paste it into the chat. The assistant reads it and creates the new listings one by one, validating each one, and when it finishes it sums up which ones it saved and which ones it did not, and why. It is best to have it solve one row first and go on with the rest once you are happy with it: that way its questions reach you once and not on every row.

With a Vendor account

• There are no standalone offers. Amazon does not accept vendor offers: a product that is already on Amazon is created as a whole product, with its ASIN as a suggestion, and the validation tells you which ASIN Amazon matched it to.
• Each new listing goes under a vendor code. If the connection has one, that one is used; if it has several, the assistant asks you which; if it has none, add it first in Settings → Connections, by editing the connection. A family goes entirely under the same vendor code.
• The SKU has to be new under that vendor code. The same SKU under another vendor code is fine.
• The cost price and the list price are optional. If you do not give them, the listing is created without prices and you manage them in Vendor Central.
• Possible duplicate warning. If Amazon matches the new listing to an ASIN that vendor code already has with another SKU, it is saved anyway and the assistant warns you.
• Accepted is not on sale. When Amazon accepts it, the product appears in your Vendor connection under its vendor code, but it is Amazon who decides when to place orders.

Review and publish

You have two ways to publish:

• From the app: in Catalog → Products, go into Publish changes, New listings pending tab, tick the ones you want and click Publish. You can publish new listings and changes in the same submission, and new listings are uploaded first. How the screen works is in The Publish changes screen.
• From the assistant: it shows you what is pending and publishes only what you confirm. It needs the Publish to Amazon permission. Publishing cannot be undone.

A family goes out with a single Publish. Tick the parent and its children together: the parent is uploaded first and the children wait, as Waiting for the parent in Publications, until Amazon creates it, usually within minutes. If Amazon rejects the parent, or it does not show up in time, the children go back to pending with the reason: fix the parent and publish the family again. A child you publish without its parent stays pending and asks you to publish the parent too.

Follow the submission in Publications. There you see what Amazon is processing and, once it accepts it, Importing into Epinium while the product reaches your catalog. If an accepted new listing does not show up after a while, it appears as Not showing up yet and is linked automatically when it arrives with the next sync.

If Amazon rejects it

• It goes back to New listings pending with Amazon's reason. Open it with View details, fix what it asks for and click Save as pending; Validate on Amazon checks it without publishing it. You can also ask the assistant to fix it. Then publish it again.
• Discarding it removes it from the list without touching Amazon, and you can create it again. While it is pending, its SKU stays taken.
• An accepted offer can still be suppressed if your account needs the brand's authorization in Seller Central.
• If your connection has a product whitelist that leaves the SKU out, Amazon accepts the new listing, but you will not see it in Epinium until you add the SKU to the whitelist. The assistant warns you when saving it.

How much it costs

Action	Credits
Searching Amazon's catalog, viewing your shipping templates, listing and discarding new listings	Free
Validating a new listing	1 per validation
Saving a new listing	5
Publishing	No extra cost

Every validation counts, so the assistant gathers your answers before validating again. The rates are in Settings → Credits.