| Field | Type | Flags | Description |
|---|---|---|---|
| description | String | Invoice item's description, can override the original item's description | |
| item_id | Objectid | Nullable | ID field |
| quantity | Decimal | Invoice item's quantity | |
| reference | String | Invoice item's reference, related to the item | |
| tax | Reference | Nullable | Invoice item's tax |
| unit_price | Decimal | Invoice item's unit price |