# Link existing listings across marketplaces with Matching

> Already listed on several marketplaces? Import everything, then use Inventory → Matching to link the same item so a sale on one delists the others.

Source: https://wiki.treecat.io/match-listings-across-marketplaces · Section: Inventory, import and matching · Updated: 2026-10-21

You do not have to relist anything. Treecat imports the listings already on your marketplaces, and **Inventory → Matching** suggests which listings are the same item. Accept a suggestion to link them, and from then on a sale on one marketplace delists the others. [Fix Duplicates](https://wiki.treecat.io/fix-duplicates) cleans up repeats, and [Confirm Quantity](https://wiki.treecat.io/quantity-and-multi-quantity) pushes the right quantity to every live listing.

## Start from what you already have
When you connect a marketplace, Treecat imports your active listings and sales history, then keeps checking for new listings you create directly on the marketplace. Importing is free and there is no item limit. See [Import your listings and sales](https://wiki.treecat.io/import-listings-and-sales).

## Link the same item across marketplaces
1. Open **Inventory → Matching** and click **Calculate**. Treecat looks through your inventory and groups items that look alike, each with a match percentage.
2. Review the suggested groups under **To review**. Each group shows the listings Treecat thinks are the same item.
3. Click **Accept & link** on each correct group. To accept many at once, use **Accept High (+90%)** for all high-confidence suggestions, or **Accept custom accuracy level** to choose your own threshold.
4. If asked which photos the linked item should keep, choose **Merge all images**, **Keep only primary listing images**, or images from the marketplaces you pick.
5. Click **Dismiss** on a wrong suggestion. It only removes the suggestion, never a listing. Dismissed suggestions move to the **Dismissed** tab, where **Restore to review** brings one back.



Linked items are treated as crosslisted: auto-delist protects them, and their sale is billable (see [What counts as a billable event](https://wiki.treecat.io/what-counts-as-a-billable-event)). If you do not want an item billed, do not match it.

> **Tip:** Review suggestions at low and medium percentages carefully, and match items by hand if needed. You can show 50 or 100 groups per page, or choose **Endless scroll**.

## Match one item by hand

Open the item and click **Match** in its action bar. Treecat helps you find and link the matching listing on another marketplace.

## Unlink items that were matched by mistake

- **From the Inventory page:** select the item and choose **⋯ → Unmatch** in the action bar.
- **From the item page:** click **Unlink** to split the cross-marketplace link for that item.

## Clean up duplicates
**Inventory → Fix Duplicates** finds repeated listings within a marketplace account. Mark the one to keep and approve, and Treecat delists and deletes the rest. See [Fix duplicate items](https://wiki.treecat.io/fix-duplicates).

## Keep quantities consistent
- Each sale lowers the item's available quantity by the quantity sold. At zero, the other listings are delisted.
- If quantities have drifted, select items in Inventory or Sales and use **Confirm Quantity**. Treecat pushes that quantity to every live listing; agent-based marketplaces update over the next few minutes.
- Each item's **Events** timeline shows what was updated and when.

See [Quantity and multi-quantity items](https://wiki.treecat.io/quantity-and-multi-quantity).

## Frequently asked questions

### Do I need SKUs to link listings?

No. Treecat matches listings by their content and you confirm the matches. Once linked, they share one inventory item and quantity.

### Do I have to recreate my listings to use Treecat?

No. Import them and link them with Matching.

### Is Matching free?

Running Matching is free. A linked item becomes billable when it sells, like any crosslisted item.