Some storefronts like eBay and WalMart may require certain attributes when listing products to their storefronts. These attributes can range from material, weight, or style.
1. To add a custom listing attribute, navigate to Settings > Listing Settings > Custom Attributes
2. Click 'Add New'
3. Use the Storefront drop down to select a specific storefront for the attribute.
4. You will then be able to add values for these custom attributes when listing to specific storefronts. Note, the name of the custom attribute in ecomdash should match the name of the custom attribute supported by the storefront.