How to Manually Add or Upload Product Details in Linnworks

If you only have a handful of new products to add, going through the full flat file template process is overkill. Linnworks lets you add a single product directly from the dashboard in a few minutes, which is the faster option whenever you are adding items one at a time rather than uploading a large catalog at once.

This guide walks through exactly how to manually create a new inventory item in Linnworks, fill in the fields that actually matter, and confirm it was added correctly, plus how to go back and edit it later.

Table of Contents

1. When to Add Items Manually vs Using a Bulk File
2. Step 1: Open My Inventory
3. Step 2: Start a New Item
4. Step 3: Fill In Core Identifiers
5. Step 4: Fill In Product Details
6. Step 5: Save the Item
7. Step 6: Confirm the Item Was Added
8. How to Edit an Existing Item
9. Common Mistakes to Avoid

When to Add Items Manually vs Using a Bulk File

Manual entry makes sense when you are adding a small number of new SKUs, testing a new product before committing to a full catalog upload, or making a one-off correction. If you are adding dozens or hundreds of products at once, a bulk import file is faster and reduces the chance of inconsistent data entry across products. Both methods create the same underlying inventory record, so neither is more correct than the other, it is purely a question of volume.

Step 1: Open My Inventory

Log in to Linnworks and go to the Inventory section in the left-hand navigation, then select My Inventory. This is the central catalog view where every product you have ever added or imported is listed.

Step 2: Start a New Item

From the My Inventory screen, click + Add New. This opens the new item creation form.

You will be asked to enter three fields before you can proceed to the full item details:

• Item Number: This is your SKU. Choose this carefully, since the SKU cannot be changed once the item is saved.
• Item Title: The product name as you want it to appear internally and, depending on your channel settings, on your listings.
• Barcode: Your UPC, EAN, or other product identifier, if you have one. This can usually be added or corrected later if you do not have it on hand yet.

Click Add to move to the full item details page.

Step 3: Fill In Core Identifiers

Once you reach the main item page, confirm and review the core identifying details first:

• SKU (Item Number): Already set from the previous step, this cannot be edited going forward.
• Title: Review and adjust if needed.
• Barcode: Add if you skipped it earlier.
• Category: Assign the product to a category within your Linnworks catalog structure if you use categories to organize your inventory.

Step 4: Fill In Product Details

This is where you populate the information that matters for stock tracking, pricing, and listing purposes.

• Stock levels: Enter the current quantity on hand for the relevant warehouse location.
• Pricing: Set your cost price and retail price. Cost price matters for profit reporting later, so do not skip it even if it feels optional at this stage.
• Weight and dimensions: Important for accurate shipping rate calculations and fulfillment fee estimates if you plan to list this product on a marketplace like Amazon or eBay.
• Extended Properties: This section is typically used for product features, specifications, or any additional descriptive attributes you want to track and potentially push to a marketplace listing.

Tip: Even if you plan to push this product to a marketplace later through a channel template, filling in accurate dimensions, weight, and cost price now saves time and prevents listing errors when you do connect it to a channel.

Step 5: Save the Item

Once every relevant field is filled in, click Save. Linnworks will create the inventory record and the item becomes part of your central catalog immediately.

If any required field was missed, Linnworks will typically flag it before allowing the save to complete, so review any error messages before assuming the item was saved successfully.

Step 6: Confirm the Item Was Added

Go back to My Inventory and use the search bar to look up the item by its SKU or title. If it appears in the results with the details you just entered, the item was added correctly.

This quick check matters more than it might seem. Confirming the item exists and is searchable now, rather than assuming it saved correctly, avoids a confusing troubleshooting session later if you try to link this SKU to a channel listing and cannot find it.

How to Edit an Existing Item

If you need to correct or update a product you already added, go to My Inventory, find the item, and click on its SKU. This opens the edit page with all the same fields available from the original creation process.

Make your changes and click Save again to update the record.

Important: The SKU (Item Number) itself cannot be changed once an item is created.If you genuinely need a different SKU, you will need to create a new item rather than rename the existing one, since the SKU is the permanent identifier that everything else, including channel listings and order history, is built around.

Common Mistakes to Avoid

• Choosing a SKU you may want to change later. Since the SKU is permanent, take a moment to settle on a clear, consistent naming convention before saving rather than after.
• Skipping weight and dimensions. These fields feel optional during manual entry but become important the moment you try to list the product on a marketplace or calculate shipping costs.
• Forgetting to set stock levels for the correct location. If you operate multiple warehouses, make sure you are entering the quantity against the right location, not just the default one.
• Not confirming the save was successful. Always search for the item afterward rather than assuming the save went through, especially if you were interrupted or navigated away quickly.

Manually adding a product in Linnworks takes only a few minutes once you know which fields actually matter for your workflow. For occasional additions or quick corrections, this is the simplest path. If you find yourself adding new items in batches of ten or more on a regular basis, it is worth setting up a bulk import template instead, since it will save considerably more time at that volume.

Have questions about a specific field or an item that is not showing up correctly after saving? Leave a comment below.