This guide explains how to manage inventory in the 3Dsellers Products Catalog, how inventory sync works across channels, and how to use the Multichannel Inventory Management dashboard and Inventory Logs.
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The Products Catalog acts as the central inventory source for all connected channels.

Inventory stored in the 3Dsellers Products Catalog is used to control stock across your sales channels.
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Using the catalog, you can:

Keeping catalog inventory accurate ensures your listings show the correct stock everywhere.

Inventory can be managed in two places.

Use this section to manage inventory for a single product.

1) Click to Edit the product:
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2) Go to the Inventory section

Here you can view:

Click Edit Inventory to open the detailed Inventory Settings.

This dashboard shows inventory for all products in one table.

You can:

Products Catalog → Inventory Management

From this page you can also access:

3Dsellers tracks three quantities for each product.
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Total physical stock available.

Units reserved for pending orders or holds.

Units available for sale.

When inventory sync is enabled, Available Qty is typically sent to the sales channel.

Inside Inventory Settings, you can choose how inventory is managed.

Tracks inventory per warehouse.

You can:

Total inventory equals the sum of all warehouses.
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Used for bundle or kit products.

Inventory may be calculated based on component products instead of a single stock value.

Most standard products use Warehouse inventory.

You will see:

Click Edit Inventory.
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In this window you can:
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See which channels (for example eBay account XYZ or WooCommerce store ABC) are synced with the product.

Choose Warehouse or Bundles & Kits.

Add warehouses and manage:

A summary row shows totals across warehouses.

Displays inventory change history including:

If no records exist:

Click Save & Exit to apply changes.

Inventory sync allows 3Dsellers to automatically update listing quantities and prices on connected channels.
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Sync settings are configured per channel, not per product.

When enabled, updates made in the catalog can automatically update:

You cannot configure sync per product.

Sync settings apply to the entire channel account.

You will see connected channels such as:

Click Edit Settings to configure sync behavior.

When editing a channel (example eBay account XYZ), you can configure how inventory and price updates behave.

Choose how price changes in the catalog affect channel listings.

Options:

Optional:

Mapping template rules may also modify the price sent to the channel.

Choose what happens when product quantity changes in 3Dsellers.

Options:

Optional:

When Products Catalog inventory management is enabled, warehouse quantities cannot be managed through the Listing Tool.
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Inventory must be updated in the Products Catalog, such as:

Catalog changes then sync to your channels based on the sync settings.

You can check Catalog settings here in the integrations tab: https://app.3dsellers.com/integrations/ebay
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For automatic updates, the listing must be linked to the catalog product (matching SKU).

If you're unsure how linking works, see:
👉 Understanding Linked and Unlinked Listings in Product Catalog

Choose how orders affect catalog inventory.

Options:

Selecting Update product quantity ensures sales reduce catalog stock.

A product is listed on:

Both listings are linked to the same catalog product.

Result:

This prevents overselling across channels.
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All the quantities changes will be available in the logs:
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You receive new stock and update the catalog.

3Dsellers automatically updates all connected listings:

Inventory updates from the catalog will only apply to listings that meet both conditions:

If either condition is not met, the listing will not receive automatic quantity updates.

The product SKU wce-787-3d is listed on:

Catalog inventory:

Inventory sync is disabled for eBay account XYZ in the channel settings.

If the catalog inventory changes:

Result:

Because inventory sync is disabled, 3Dsellers will not send quantity updates to that eBay account.

If the eBay listing is not linked to the catalog product, the quantity will also not update automatically.
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The listing will only update if the following option is enabled in the channel settings:

Otherwise, the listing will continue using its own quantity.

✔ To ensure inventory stays synchronized across channels:

Inventory Logs help you track inventory changes across products and channels.

Products Catalog → Inventory Management → Logs

Logs show:

Use filters or search to investigate inventory changes.

The Products Catalog should be treated as the central inventory source.

This ensures:

Learn more about managing products and inventory in the 3Dsellers Products Catalog: