eBay item specifics: what they are and why they matter
Item specifics are the structured facts about your item, such as brand, size, colour and type. They power the filters buyers use to narrow down search results, so missing or wrong specifics can keep a good listing out of sight.
What are item specifics on eBay?
Item specifics are the details you pick or type into set fields when you create a listing. eBay describes them as brand, size, type, colour, style or other relevant information about the item you’re selling.
Unlike your description, item specifics are structured. Each one is a named field with a value, such as Colour: Black or Size: UK 10. That makes them easy for eBay to match against what buyers search for and filter on.
eBay’s Seller Centre says completed item specifics are essential for being found both on eBay and on external search engines. The more accurate data you give, the better eBay can match your item to what a buyer is looking for.
Required vs recommended item specifics
eBay splits item specifics into three levels. Which fields fall into each level depends on the category you’re selling in.
| Level | What eBay says | What to do |
|---|---|---|
| Required | Critical to the buyer experience. New or revised listings without them are blocked. | Fill in every one, accurately. You can’t publish without them. |
| Recommended | Improve buyers’ search experience. eBay strongly recommends providing as many as you can. | Fill in all that apply to your item. These are often the filters buyers use. |
| Additional | Help buyers learn more about the item’s features and may influence their decision. | Add them where you have accurate information. |
Tip Recommended doesn’t mean unimportant. If buyers in your category filter by something, such as size or material, a listing without that value may not appear once the filter is on.
How buyers use item specifics to filter
When a buyer searches, eBay shows filters alongside the results on desktop and mobile. Those filters come from item specifics.
Say a buyer searches for women’s running trainers, then ticks UK Size 6 and Colour: Black. eBay can now show only the listings whose item specifics match. If you left Size blank, or typed the size into the title only, your listing may drop out of the results the buyer is looking at.
That’s why it pays to choose eBay’s own values from the drop-down lists where they fit. A value spelled your own way may not line up with the filter buyers tick.
Brand, MPN, EAN and GTIN explained
Product identifiers are unique codes that identify a specific product. eBay says they work like barcodes. Adding them helps your listing appear in more relevant search results, and can speed up listing by filling in key item details for you.
| Identifier | What it is | Where to find it |
|---|---|---|
| Brand | The name the product is made or sold under. | On the product, label or packaging. |
| MPN | Manufacturer Part Number: the model or part code the manufacturer gives the product. | On the packaging, label, manual or the manufacturer’s website. |
| EAN | European Article Number: the barcode number found on many products sold in the UK and Europe, usually 13 digits. | Printed under the barcode on the packaging. |
| GTIN | Global Trade Item Number: the umbrella term for barcode numbers, including EAN, UPC and ISBN. | Under the barcode. eBay may ask for it under a more specific name, such as EAN. |
| ISBN | International Standard Book Number, used for books. | On the back cover or the copyright page. |
Watch out eBay warns that choosing a similar but incorrect version of a product can mislead buyers. Check the identifier matches the exact model, size and colour you’re selling.
When can you use “Does not apply” on eBay?
eBay’s item description policy does not allow inaccurate information such as Does not apply, Unbranded/Generic or N/A for required product identifiers, such as Brand, UPC or MPN, when the manufacturer has provided that information.
So the test is simple: does the code exist? If the box has a barcode, the item has an EAN, and you should enter it. If the manufacturer gives a part number, enter it. If the item has a brand, Unbranded is not accurate.
Does not apply is only honest when no such code exists, for example a handmade item or a product the manufacturer never gave a barcode or part number. Don’t use it to save time, and don’t use it because the code is hard to find.
Why the right category matters
eBay’s item description policy says items must be listed in the correct category. Category also decides which item specifics you’re asked for, and which of them are required. List a phone case under phones and you’ll be asked the wrong questions, and buyers filtering in the right category won’t see you.
- Search eBay for your item and look at which category similar sold listings sit in.
- Choose the most specific category that fits. eBay’s listing tool also lets you list in a second category.
- If you change category later, check your item specifics again, as the required fields may change.
How to fill in item specifics well
OneDS’s Chrome extension fills in item specifics on a draft eBay listing, for you to check and edit before you publish.
- Start with product identifiers. eBay can use them to fill in key details for you.
- Check every value it fills in against the actual item, its label and its packaging.
- Complete all required specifics, then work through the recommended ones.
- Pick eBay’s listed values where they fit, so your listing lines up with buyers’ filters.
- Put each fact in its own field. eBay’s policy gives the example of not putting the brand in the size field.
- Make sure your title, photos and description say the same thing as your item specifics.
Questions
Are item specifics required on eBay?
Some are. Which ones depends on the category. eBay blocks new or revised listings that are missing required item specifics, and strongly recommends filling in as many recommended ones as you can.
What does Does not apply mean on eBay?
It tells eBay that a product identifier, such as an EAN or MPN, doesn’t exist for your item. You can’t use it when the manufacturer has provided that information.
What if my item has no brand?
If the item genuinely has no brand, you can say so. If it has a brand on the item, label or packaging, eBay’s policy doesn’t allow Unbranded or Generic instead.
Do item specifics help my listing get found?
Yes. eBay says completed item specifics are essential for being found on eBay and on external search engines, and they power the filters buyers use to narrow results.
Sources
Rules and fees change. These are the official pages this guide was checked against on 5 October 2026. This guide is general information, not legal, tax or financial advice.