# Connect Cardmarket

Use the TCG STATS browser extension to move listing changes between TCG STATS and Cardmarket.

> Documentation index: https://tcgstats.com/docs/llms.txt

Cardmarket syncing uses the TCG STATS browser extension. The extension works while you are signed in to Cardmarket in a supported browser.

## Install and connect

1. Install the TCG STATS extension from the link shown in TCG STATS.
2. Open **Settings → Connections**.
3. Find Cardmarket.
4. Enter your Cardmarket username when requested.
5. Select **Connect**.
6. Choose the TCG STATS location that owns the Cardmarket stock.
7. Open Cardmarket and confirm that the TCG STATS panel appears.

## What the panel does

The panel can show:

- new items waiting to be listed;
- quantity changes;
- price changes;
- Cardmarket stock ready to import.

The exact action depends on the Cardmarket page you have open.

## Publish new listings

1. Create the listings in TCG STATS.
2. Open Cardmarket and sign in.
3. Go to the Cardmarket bulk listing page.
4. Open the TCG STATS panel.
5. Process the waiting items.
6. Continue through all batches until the panel is clear.

## Update quantities

Open your Cardmarket stock or offers page before processing quantity changes. The extension needs that page to find and update your offers.

## Import existing Cardmarket stock

Use the import option in the panel while viewing your Cardmarket stock. Review every imported match in TCG STATS before treating it as trusted inventory.

## Common problems

### The panel is missing

- Confirm the extension is installed and enabled.
- Sign in to Cardmarket.
- Reload the Cardmarket tab.
- Open the extension and check that it is connected to the correct TCG STATS location.

### The action button is disabled

Follow the page link shown by the panel. New listings, prices and quantities can require different Cardmarket pages.

### A card cannot be matched

Confirm that the TCG STATS item has the correct Cardmarket product and variation. Graded cards are not published to Cardmarket through this flow.

Source: https://tcgstats.com/docs/marketplaces/cardmarket