The cards where you enter how much the product will be sold for (Pricing) and how many units you have on hand, plus the tracking codes (Inventory).

Where to find: Product form → Pricing and Inventory cards (only in Simple Product) Who it's for: Anyone who sets the product's price and stock In short: The cards where you enter how much the product will be sold for (Pricing) and how many units you have on hand, plus the tracking codes (Inventory).

Important: These two cards only appear in Simple Product. In a variant product, price and stock are entered separately for each variant in the combination table (see Variants (Color, Size, etc.)). In a bundle product, the price comes from the bundle settings (see Bundle Product).

Card: Pricing

"Set the product's sale price. If you're selling at a discount, you can also enter a list price."

Sale Price (required)

What it does: The price the customer will actually pay.
How to enter it: Type the amount; you can select the currency next to it (your store's default currency comes automatically).
Rule: Must be 0 or greater.

List Price

What it does: The product's old / pre-discount price. It's shown struck through on the product page and creates a "there's a discount" perception.
Example: Sale Price 80₺, List Price 100₺ → the customer sees "~~100₺~~ 80₺".
Rule: If you fill it in, it must be greater than or equal to the Sale Price. Otherwise the warning "The list price can't be less than the sale price." appears. Not required.

Cost Price

What it does: Your cost of supplying/producing the product. Used in profit calculation.
Privacy: Only you can see this amount; customers can never see it.
Rule: 0 or greater. Not required.

Tip — How is profit calculated? Profit = Sale Price − Cost Price. If you enter the cost, you can see your profit in reports.

Apply a different VAT rate for this product

What it does: Normally products use your store's default VAT rate. If this product is subject to a different VAT rate, you set it here.
How to use it: Turn on the switch; a percentage box appears below it. Type the rate (between 0–100, e.g. 10).
Default: Off (the store default is used). When you turn it on, it usually comes with 20.

Card: Inventory

"Manage the product's stock status and warehouse information." This card contains the product's tracking codes and stock.

Stock Keeping Unit (SKU)

What it does: The internal tracking code you give the product. The customer doesn't see it; you use it for warehouse/shipping/marketplace operations.
Example: TSRT-BLUE-001
Convenience: The Generate button next to it creates a code automatically.
Rule: At most 255 characters. Not required.

Barcode

What it does: The product's international identification number (EAN/GTIN). It's required to send products to Trendyol and other marketplaces.
Example: 8680000000001
Convenience: The Generate button next to it generates a valid 13-digit (EAN-13) barcode.
Rule: At most 40 characters. Can only contain letters, digits, and . - _; no spaces. Otherwise the warning "The barcode can only contain letters, digits, and . - _ ; spaces can't be used" appears.

Desi

What it does: The shipment's volumetric weight. Shipping fees and marketplace deliveries use this.
How to enter it: You can type a decimal number (e.g. 1.5). Not required.

GTIP / HS Code

What it does: The customs tariff code. It's required for export and some marketplace operations.
Rule: At most 50 characters. Not required.

Stock Deduction

What it does: How many units are deducted from stock each time an order is placed.
Example: If you type 2, when a customer places 1 order, 2 units are subtracted from stock. (Useful if you sell as a pack of two.)
Default: 1. If you leave it blank, 1 is assumed.

Stock Type

What it does: Which unit the product is counted in. E.g. "Piece", "Kilogram", "Meter".
How to select: You select from the list. Not required.

Supplier

What it does: The company/person you source the product from. It's an internal record; the customer doesn't see it.
How to select: You select from the list. Not required.

Max. Quantity in Cart

What it does: The maximum number of this product a customer can add to their cart.
Default: If you leave it blank, 10 is applied.
Example: If you type 3, a customer can buy at most 3 of this product.

Backorder Sale

What it does: Whether the sale continues when stock runs out.
Options: Yes (the sale continues even if stock is 0) / No (the sale stops when stock runs out).
Default: No.

Tip: If you do pre-orders or "made to order" production, Backorder Sale = Yes is useful for you.

Warehouse Stocks

What it does: You enter how many units of the product are in which warehouse.
How to use it: There's a separate stock box for each warehouse; you type the quantity there.
Total stock is the sum of the quantities in all warehouses and is calculated automatically.

Tip — Do you have a single warehouse? Then you see a single box; it's enough to type your total stock there.

Quick summary — what do I write where?

Information	Card	Required?
The price the customer will pay	Pricing → Sale Price
Struck-through discount price	Pricing → List Price
Cost to you (hidden)	Pricing → Cost Price
Quantity on hand	Inventory → Warehouse Stocks
Internal tracking code	Inventory → SKU
Barcode for marketplace	Inventory → Barcode	(but required for marketplace)

Pricing and Inventory