How to add products and manage inventory

A catalog product describes the shared item: name, brand, category, model, options, specifications, and core media. A seller offer describes what your shop is actually selling: SKU, price, quantity, condition, availability, shipping, and shop-specific details.

Join an existing catalog product only when it is an exact match. Attaching inventory to the wrong model or option creates search problems, returns, and customer distrust. If custom catalog creation requires approval, submit a complete product request rather than forcing a near match.

1. 1

   Search the catalog first

   Use identifiers, brand, model, title, or barcode to find an exact existing item.

2. 2

   Choose or request the catalog product

   Verify category, brand, specifications, options, and product type.

3. 3

   Enter seller-specific data

   Add SKU, price, cost when used internally, quantity, availability, condition, and fulfillment.

4. 4

   Add useful media and language content

   Use clear, accurate images and original customer-facing copy.

5. 5

   Preview and publish

   Check the public page, option selection, price, stock, shipping estimate, and shop attribution.

Use the words a qualified buyer needs to identify the exact item, but keep the title readable. A useful title often combines product type, brand, model, defining attribute, and option without repeating promotional phrases.

Descriptions should explain material, dimensions, compatibility, use, included items, care, condition, and limitations. Original, specific copy gives search engines and buyers more value than copied manufacturer text or a list of keywords.

• Use one canonical product concept per listing.
• Choose the most specific accurate category.
• Complete structured attributes and specifications instead of hiding facts in prose.
• Use descriptive image alt context through accurate catalog and file labeling where supported.
• Avoid misleading availability, condition, brand, or compatibility claims.

Enable inventory tracking for finite physical stock and assign quantity to the exact seller product or variant. If warehouse stock, barcode scanning, bulk import, Shopify, Square, or another connector is enabled, define which system is authoritative before updating the same quantity in multiple places.

Reserved or temporarily held stock can differ from the visible on-hand number during checkout activity. Investigate the inventory ledger and active orders before making a large corrective adjustment.

A sustainable selling price covers product cost, EzBuyCo’s 5% marketplace commission, the 2.9% transaction fee, packaging, fulfillment support, expected returns, promotions, and required taxes. Read the seller fee guide before setting margin targets.

Featured placement can use an additional featured commission or bid where enabled. That promotional amount is separate from the standard marketplace commission and should be evaluated against incremental sales, not just impressions.

• Exact catalog match, brand, model, category, and product type.
• Unique SKU or barcode mapping and correct option combinations.
• Current price, quantity, availability date, and condition.
• Clear images showing the actual product or accurate catalog item.
• Shipping, pickup, and package settings appropriate for the item; inherited seller return/cancellation policy and marketplace-managed tax classification.
• Public product page tested on desktop and mobile.