Why can't I add certain products to my Shopify Collective price list?

A handful of issues commonly block a product from being added: the product has more than 100 variants (Collective supports up to 100 per product), the product isn't published to the Collective: Supplier sales channel or isn't set to Active status, the product isn't included in your store's Primary Market, or a product in the price list is priced at $0, which can affect how the whole list displays to retailers.