eBay item specifics: required vs recommended, and fixing missing item specifics errors.

eBay describes item specifics as descriptive keywords that tell a buyer about your item. They may include brand, size, type, color, or style, and they vary depending on what you are selling. eBay says that, together with product identifiers, item specifics are the most important way to help buyers find what they want, that buyers use them to filter search results, and that an item only appears in a filtered search if it has the matching item specific. It adds that the more you complete, the better eBay can match your item to what a buyer is looking for, and lists among the benefits visibility in search results, being found on eBay, Google Shopping and external search results, and being found when buyers filter, especially on mobile.¹ That is the practical reason to fill them in carefully: a detail that lives only in your title or description is not the same as a detail entered in the field.

Item specifics are separate from product identifiers. eBay describes product identifiers as unique codes created by the product manufacturer to identify a specific product, and says they are required when you list in most categories. They are covered further down.²

eBay's Seller Center page names these levels:¹

• Required: mandatory. eBay says you need to fill in all required item specifics for any new or revised listing.
• Required soon: a requirement eBay is adding over time. A note appears while you list, and hovering over it shows when the field becomes mandatory.
• Recommended: fields eBay suggests based on buyer demand data and popular searches. eBay advises adding as many as you can.
• Additional (optional): extra details that tell buyers more about the item.

On the create-listing form of a US seller account checked on October 15, 2026, the screen groups item specifics under two headings: Required, with the line "Buyers need these details to find your item," and Additional (optional), with the line "Buyers also search for these details." Next to the name of an optional specific the form showed an approximate search count, for example Card Type with about 9.9 million searches.³ eBay says the guidance you see while listing is based on the number of searches over the past 30 days, and that a lightning bolt meter fills up to show how complete your item specifics are.¹ Your screen may differ, since eBay changes its forms.

The list is not the same for every item. eBay's Taxonomy API, which developers use to look up fields by category, returns the aspects (its word for item specifics) that are appropriate or necessary for describing items in a given category. For each aspect it indicates whether the aspect is required in that category, and whether it is recommended or optional.⁴ In plain terms, a field that is required for one kind of item can be optional or absent for another. The Seller Center page also points to a separate page of the latest item specifics requirements for your categories, which is the place to check what is required now and what becomes required soon.¹

The same specification says each aspect has a mode. With one mode the seller can pick from provided values or type a new value. With the other the seller must pick from the provided values.⁴ It also says an aspect can accept a single value or multiple values depending on the category. So if a field will not take what you typed, look for a dropdown choice, and if you have two values, check whether the field allows more than one.

Because the list follows the category, changing the category can change which fields are required. Pick the category first, then fill in the specifics. For help choosing, see choosing an eBay category.

Read the item first: tags, labels, the underside of a box, and the packaging usually carry brand, size, and model details. Then work down the form's Required group before the optional one. On the form checked on October 15, 2026, some specifics only became available after another was answered. For example, Autographed had to be answered before Signed By appeared.³ If a field you expect is missing, check whether an earlier answer unlocks it.

The same form had an "Add custom item specific" dialog that takes a free text Name and Value, with Year and 2017 shown as an example.³ Use it for a real detail the listed fields do not cover, and prefer a listed field when one fits.

For listings that are already live, eBay says Seller Hub tasks flag listings missing required item specifics, the Active Listings page has quick filters for missing required, required soon, or recommended specifics, and you can select several listings and choose "Add item specifics" to step through them. eBay also describes downloading an Excel file of your active listings that are missing required, required soon, or recommended specifics, editing it, and uploading it to apply the changes across several listings.¹

eBay says product identifiers work like barcodes and may include UPCs, SKUs, ISBNs, and Manufacturer Part Numbers (MPN). eBay also says that when you enter an identifier it will suggest a match if the product is already in the eBay catalog, filling in fields such as the photo and title, and that you should only use an identifier that exactly matches the product, because a slightly different one, such as a model from another year, risks misleading buyers. For products with no identifier, such as antiques, or when you are not sure what it is, eBay says sellers can simply select "Does not apply," and it recommends going back to add identifiers later if you skipped them.² Vintage, handmade, and older items often have no code to enter, so look for that choice rather than typing a made up number. This guide did not find a first-party eBay page stating a rule for items with no brand, so check the field's own options on your form.

eBay's rule is that every required item specific must be filled in for a new or revised listing.¹ If a listing will not publish and the message mentions item specifics, work through this list:

1. Open the listing form and go to the Required group. Fill in every field marked required.
2. Confirm the category. A different category can bring a different required list.
3. Check for a field that appears only after you answer another one.
4. If a dropdown rejects your wording, pick from the provided values.
5. If the item has no product identifier, look for "Does not apply" in that field. Use it only when the manufacturer did not supply the information, because eBay's item description policy bars it, along with unbranded or generic and "N/A", for required identifiers the manufacturer has provided.
6. Save and try again. If the message is unclear, copy it exactly and look it up on eBay's own help pages.

These steps rest on eBay's published rules and the screens described above, not on a list of every error message, which eBay does not publish in one place that this guide could confirm.

Strooply identifies an item from your photos and builds a draft that includes a title, description, category, condition notes (you can choose the condition, and if you do not, the AI suggests one), and item specifics. When eBay's category data loads, the draft lists eBay's required item specifics plus up to 20 recommended ones, grouped into required, recommended and optional fields so you can see what to check first, and the AI fills in what it can identify; if that data does not load, the draft uses a shorter fixed set of fields. You review and edit the draft, and nothing is published to eBay until you tap Publish. See how Strooply works. Before you price the item, test the numbers in the eBay fee calculator, and see the shipping supplies guide for packing materials.