Last updated: Oct 4, 2026 at 10:40PM
Some marketplaces ask for a product's material composition as a set of numbered fields — "Material 1", "Material 1 Composition Percentage", "Material 2", and so on. Target+ does the same with its "Apparel material" fields. In Osello you fill in one Materials field instead (Apparel materials on Target+): a single list where each row is one material and how much of the product it accounts for. Osello splits your list back into the marketplace's numbered fields when it submits the listing.
Add materials to a listing
- Open the listing and find Materials in the field list.
- Click the edit icon on that row.
- Pick a material from the dropdown. The list comes from the marketplace and depends on the listing's category, so you can only choose materials the marketplace accepts for that kind of product. Start typing to search.
- Enter the percentage of the product made from that material.
- Click Add material for each additional material, then Save.
The running total on the right shows how much of the product you've accounted for. It turns red until your percentages add up to 100%, which is what most marketplaces expect. A total over 100% can't be saved — reduce a percentage first.
Order matters
Materials appear on the marketplace in the order you list them, and the first material fills the marketplace's "Material 1" slot. List the most common material first — for a shirt that's 90% cotton and 10% polyester, put cotton at the top.
How many materials you can add
Each marketplace accepts a fixed number of materials, so the Add material button stops working once you reach the limit. Nordstrom accepts five. Target+ sets the limit per category: two for ties, and up to seven for sweaters. If you try to save more than the marketplace accepts, Osello blocks the save rather than quietly dropping the extras.
Sets with more than one piece
Target+ takes the materials of each piece in a set separately. A pajama set's listing has Piece 1 apparel materials, Piece 2 apparel materials and so on, and you fill each one in the same way as Apparel materials.
When a material needs a percentage
On most marketplaces, Nordstrom included, a material can't be saved without its amount. If you know a product contains a material but not how much, leave that material out until you know the number — otherwise Osello blocks the save and names the materials that are missing one. A red note appears under the list as soon as an amount is empty, so you can see what's missing before you save.
When the field can be set on both the listing and its variants, the error also reminds you that the composition can be set on each variant instead — useful when a style's colorways aren't all made of the same thing.
Target+ doesn't require percentages, so on Apparel materials and each Piece N apparel materials field you can list a material and leave its amount empty. Target+ then receives that material without a percentage.
Some marketplaces only ask which materials a product contains, with no composition figures. The requirement is a per-field setting that Osello staff can turn off for those fields, which makes the amount column optional. If a Materials field is asking you for amounts the marketplace doesn't need, contact support.
Decimal percentages
Some marketplaces only take whole percentages, and others take a set number of decimal places. When a marketplace has a limit, the amount box won't let you type past it — on a whole-number field, 90.5 is rejected as you enter it.
An amount that reaches Osello with more decimal places than the marketplace takes — from an import, or filled in for you — is rounded when it's saved rather than blocking the listing. Percentages are rounded as a set so the list still adds up to what it added up to before: 90.5% polyester and 9.5% cotton become 91% and 9%, not 91% and 10%.
What the marketplace receives
Your single list is expanded back into the marketplace's own numbered fields on submission, exactly as if you'd filled each one in by hand. A listing that's 60% leather and 40% cotton arrives as "Material 1: Leather, Material 1 Composition Percentage: 60, Material 2: Cotton, Material 2 Composition Percentage: 40".
The same is true in reverse — when Osello reads a listing back from the marketplace, or when you bulk edit with an import, the numbered columns are combined back into one Materials list.