> ## Documentation Index
> Fetch the complete documentation index at: https://gobl-regime-code.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# SubLine

SubLine provides a simplified line that can be embedded inside other lines to provide a more detailed breakdown of the items being sold or substituted.

## Schema ID

`https://gobl.org/draft-0/bill/line#/$defs/SubLine`

## Properties

| Title           | Property     | Type                                                      | Req. | Description                                                                                                                                                                                                                                                                             |
| --------------- | ------------ | --------------------------------------------------------- | ---- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| UUID            | `uuid`       | string                                                    |      | Universally Unique Identifier.                                                                                                                                                                                                                                                          |
| Index           | `i`          | integer                                                   |      | Line number inside the parent (calculated)                                                                                                                                                                                                                                              |
| Quantity        | `quantity`   | [num.Amount](/draft-0/num/amount)                         | true | Number of items                                                                                                                                                                                                                                                                         |
| Identifier      | `identifier` | [org.Identity](/draft-0/org/identity)                     |      | Single identifier provided by the supplier for an object on which the line item is based and is not considered a universal identity. Examples include a subscription number, telephone number, meter point, etc. Utilize the label property to provide a description of the identifier. |
| Period          | `period`     | [cal.Period](/draft-0/cal/period)                         |      | A period of time relevant to when the service or item is delivered.                                                                                                                                                                                                                     |
| Order Reference | `order`      | [cbc.Code](/draft-0/cbc/code)                             |      | Order reference for a specific line within a purchase order provided by the buyer.                                                                                                                                                                                                      |
| Cost Reference  | `cost`       | [cbc.Code](/draft-0/cbc/code)                             |      | Buyer accounting reference cost code to associate with the line.                                                                                                                                                                                                                        |
| Item            | `item`       | [org.Item](/draft-0/org/item)                             | true | Details about the item, service or good, that is being sold                                                                                                                                                                                                                             |
| Sum             | `sum`        | [num.Amount](/draft-0/num/amount)                         |      | Result of quantity multiplied by the item's price (calculated)                                                                                                                                                                                                                          |
| Discounts       | `discounts`  | array of [bill.LineDiscount](/draft-0/bill/line_discount) |      | Discounts applied to this sub-line                                                                                                                                                                                                                                                      |
| Charges         | `charges`    | array of [bill.LineCharge](/draft-0/bill/line_charge)     |      | Charges applied to this sub-line                                                                                                                                                                                                                                                        |
| Total           | `total`      | [num.Amount](/draft-0/num/amount)                         |      | Total sub-line amount after applying discounts to the sum (calculated).                                                                                                                                                                                                                 |
| Notes           | `notes`      | array of [org.Note](/draft-0/org/note)                    |      | Set of specific notes for this sub-line that may be required for clarification.                                                                                                                                                                                                         |