| object | string | Value is “TransactionItem” |
| sku | string | The SKU or unique identifier of the product purchased with this item (for one-time transactions this is an ad-hoc value. |
| index_number | integer | Sequential index of all items on the transaction. |
| item_type | enum(TransactionItemType) | |
| name | string | Merchant-provided name or inherited description of the product purchased |
| subscription_item | Subscription Item | Subscription Item associated with this item. |
| price | decimal | unit price of this item |
| metadata | hash | A set of key/value pairs that you can attach to an object. Useful for storing additional information. |
| quantity | decimal | The unit quantity for the item; for license-based products this is the license/seat quantity. |
| tax_classification | string | The tax code or classification applicable to this item. |
| tokens | Token Amount | Tokens granted to the account on this transaction for purchasing this item |
| campaign_code | string | Campaign code redeemed on this Transaction Item. |
| campaign_id | string | The unique identifier for a campaign applied to this item. |
| campaign_description | string | Detailed description of the campaign for the discount on this item, if there is one. |
| discount_tickets | Discount Tickets | Discount Tickets offer the ability to redeem multiple campaign discounts. This attribute is an array of Discount Tickets applicable to this Trasaction item. |
| item_discounts | Transaction Item Discount | Array of discounts associated with this item. |
| tax_total | decimal | The total tax on this item |
| service_period_starts | datetime | The start date for the period the charge on this item covers. |
| service_period_ends | datetime | The end date for the period the charge on this item covers. |
| tax_type | string | Fixed Tax definition (read only). |
| tax | Tax Item | Array listing the individual tax items associated with the corresponding transactionItem. |
| related_transactions | string | List of merchantTransactionIds for all Transactions related to this item. e.g. For a credit resulting from the removal of an SubscriptionItem, this will contain the list of all Transactions that originally billed for the item within the time frame covered by the credit. |
| item_refunds | Transaction Item Refund Summary | Detail on item-level refunds applied to this item. |
| discount | decimal | The total discount amount applied to this item. |
| subtotal | decimal | The pre-tax (post-discount) subtotal. |
| total | decimal | The grand total of this item |