# Useful tips

• Please refer to the [orders and shipping glossary section](/v2/glossary/glo1-4.md) for more details.

• KIT items type and COMPONENT item type When the item order is a KIT item type, the order brings all the kit component items. Please, double check the ITEM property to filter and get only the item type you need to work with.

• Component items without price

When the item order is a KIT item type, the order brings all the kit component items. \
\
Some customers do not have a fixed selling price for the component. They only establish the sale price of the KIT as a whole. In this scenario you can get and use the \[Calculated] prices attributes.

• Free shipping

When the marketplace product listing is set to “Free shipping” you will get the \[ShippingAmount] attribute value in 0.00 (zero).

• Financial charges

Some marketplaces apply financial surcharges to credit card installment payments. You can calculate the finance charge as: \[Amount] - \[TransactionAmount] – \[Preferred Shipping Amount] \
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Some customers use the \[Preferred Shipping Amount] as the \[ReceiverCost] attribute. \
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Other customers use \[Preferred Shipping Amount] as the \[ReceiverCost] + \[SenderCost] attribute. \
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It depends on the seller’s invoicing policy.

• Discounts

Some marketplaces allow discounts to be applied to orders for various reasons, such as coupons, discounts, cashback, and others. Review the "[Discount](https://developers.alephee.com/v2/orders/get-methods/get-orders/response#discount)" array within the "[Payments](https://developers.alephee.com/v2/orders/get-methods/get-orders/response#payment)" object when downloading the order to see details of the discounts applied to the order.


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