# How to check if a product is in Amazon's catalog (ASIN matching)

Before you can sell your products on Amazon, it's important to know if they already exist in Amazon's catalog. If they do, you can add your offer to the existing product listing. If they don't, you'll need to create a new product listing. 

In this article, we explain how to check if your product is in Amazon's catalog. This is especially helpful when setting up an Amazon channel and determining the **Listing requirement level** you need.

***

### Before you start

You'll need:

* A [Professional Amazon selling account](https://sell.amazon.com/pricing)

Good to know:

* Amazon has a global catalog of all products that are sold on Amazon. If a product is in Amazon’s catalog, it has an **ASIN** (Amazon Standard Identification Number).

### Check using Amazon Seller Central

Follow these steps to manually check if a product is in Amazon's catalog (and find its ASIN):

{% stepper %}
{% step %}
Log in to your [Amazon Seller Central account](https://sellercentral.amazon.com/ap/signin?openid.pape.max_auth_age=0\&openid.return_to=https%3A%2F%2Fsellercentral.amazon.com%2Fhome\&openid.identity=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0%2Fidentifier_select\&openid.assoc_handle=sc_na_amazon_v2\&openid.mode=checkid_setup\&language=en_US\&openid.claimed_id=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0%2Fidentifier_select\&pageId=sc_na_amazon_v2\&openid.ns=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0\&ssoResponse=eyJ6aXAiOiJERUYiLCJlbmMiOiJBMjU2R0NNIiwiYWxnIjoiQTI1NktXIn0.0YXiCJ2rrQA0912o_HMme1HH7-a6QMIuxIfl9FUqiP0zZQePaZUJFA.ftcs4hqyGkOJhKtF.ooWSMTtOL3V3TWj4dNhh3yOgNRVJkq5ZVkKrRgH8bWm3tsmH8ejBqCjQV-cfKgPL5wZqpLbuT-hDmR018reEO1Ie4cao7j2D5ccEs9bB-eD5vwvczX7q-XVyQuZ6yDJwaYk5rgM2ooY96uiZfiyrAw1Eb2GKrAuOzREzhoSUnqiKtzsKNDzTW92AVwfQYlZ02UxDndsHFxeUj_8T-y6Ype36QWoy5C_fa_gBH7oVKogmBcNdpH9xhVujH5IRSW_i0w.A7FH419t6WdyltXnndu5Lg).
{% endstep %}

{% step %}
In the Catalogue section, select **Add Products via Upload** and click **Download blank template**.
{% endstep %}

{% step %}
In **List products already in Amazon’s catalogue**, click **Get Listing Loader**.
{% endstep %}

{% step %}
For **Spreadsheet language**, select the language and marketplace (Amazon country) you’re selling your products in.
{% endstep %}

{% step %}
In the text box, copy and paste the product IDs you want to check. You can search up to 500 IDs at a time.
{% endstep %}

{% step %}
Click **Generate spreadsheet**. This may take a few minutes to download.
{% endstep %}

{% step %}
Open the spreadsheet and click on the **Template** tab (labelled 'Sjabloon' in Dutch).
{% endstep %}

{% step %}
Check the green F column to view the product’s ASIN number.
{% endstep %}
{% endstepper %}

### Understanding your results

<details>

<summary>One or more products don't have an ASIN number</summary>

This means it doesn’t exist in the Amazon catalog. You'll need to create a new product listing.

* If you're setting up a new Amazon channel, you need to provide both product and offer data as your listing requirement level. In Step 2, follow “ [**I want to create a new listing, or change data in an existing listing and manage my offers.**](https://helpcenter.channable.com/hc/en-us/articles/360011080360-How-to-set-up-an-Amazon-channel#h_01JRFTHAH8QJNQA28TKY453KTQ)”

</details>

<details>

<summary>All products have an ASIN number</summary>

This means you only need to provide offer information, as the rest of the product information is already provided on Amazon.

* If you're setting up a new Amazon channel, you only need to provide offer data as your listing requirement level. In Step 2, follow “ [**I want to add my offer to an existing listing on Amazon**"](https://helpcenter.channable.com/hc/en-us/articles/360011080360-How-to-set-up-an-Amazon-channel#h_01JRFTHAH8QJNQA28TKY453KTQ)

</details>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://helpcenter.channable.com/list-advertise/amazon/list-items-on-amazon/how-to-check-if-a-product-is-in-amazons-catalog-asin-matching.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.