Product Attributes That Control Marketplace Listings
Marketplaces like AmmoSeek, AmmoBuy, Gun.deals, and WikiArms use many parts of your
product data — including titles, descriptions, pricing, and images.
The most common reason a product does not appear on a marketplace
is because one or more required product attributes are missing, empty, or named incorrectly.
This guide focuses specifically on WooCommerce product attributes,
since those fields are what marketplaces rely on for product identification,
classification, and eligibility.
What “Product Attributes” Mean in WooCommerce
Product attributes are the structured fields found in the
Attributes section when editing a product.
Examples include UPC, Caliber/Gauge,
Units per Box, Shot Size,
and Manufacturer.
or custom text fields.
Marketplaces depend on attributes because they are consistent and predictable.
If an attribute is missing or unclear, the product may be excluded entirely.
Why Attributes Must Be Global Attributes
WooCommerce allows attributes to be added in two ways:
- Global attributes (created once and reused)
- Custom product attributes (typed directly on a product)
Global attributes ensure that every product uses the
exact same attribute name and structure.
This consistency is required for FFL Cockpit and marketplaces to read the data correctly.
Attribute Names Must Match Exactly
Attribute names must match exactly — spelling, spacing, and punctuation.
Examples of names that will break listings
Caliberinstead ofCaliber/GaugeUPC Codeinstead ofUPCRounds Per Boxinstead ofUnits per BoxMFGinstead ofManufacturerShell Lengthinstead ofLength
Even though these look reasonable to a person,
marketplaces do not guess or auto-map attribute names.
Where to Check This on a Product
- Go to Products in WordPress
- Edit the product
- Scroll to the Attributes section
-
Confirm required attributes:
- Are selected from the dropdown (not typed manually)
- Have a value selected
- Match the required names exactly
or the name does not match exactly,
marketplaces behave as if it does not exist.
Required Product Attributes by Marketplace & Product Type
This table shows the minimum required attributes
that must be set on each product for it to appear on each marketplace.
| Marketplace Target | Product Type | Required WooCommerce Attributes (Exact Names) |
|---|---|---|
| AmmoSeek AmmoBuy AmmoHunter CaliberKing |
Ammunition |
UPCManufacturerCaliber/GaugeUnits per Box
|
| Shotgun Shells |
UPCManufacturerCaliber/GaugeUnits per BoxShot SizeLength
|
|
| Bullets |
UPCManufacturerBullet Caliber or Caliber/GaugeUnits per Box or Bullets per Box or Quantity or Count
|
|
| Brass |
UPCManufacturerCaliber/GaugeUnits per Box
|
|
| Magazines |
UPCManufacturerCaliber/Gauge
|
|
| Firearms |
UPCManufacturerCaliber/GaugeProduct Type
|
|
| Gun.deals GunAmmo.deals WikiArms GunFeed |
Ammunition |
UPCManufacturerCaliber/GaugeUnits per Box
|
| Firearms |
UPCManufacturerModelATF TypeActionCaliber/Gauge
|
|
| Bullets |
UPCManufacturerCaliber/GaugeUnits per Box
|
|
| Primers / Reloading |
UPCManufacturerQuantity or Units per Box
|
Reminder:
• Attributes must be global attributes
• Attributes must be set on the product
• Attribute names must match exactly
Key Takeaway
but exactly named, properly filled product attributes determine whether a product qualifies to be listed.
If a product isn’t appearing on a marketplace,
the first place to check is the product’s Attributes section.
