# GET /api/v2/sales-invoice-rows/{sales_invoice_row}

Read an invoice line

- MCP id: sales-invoice-rows.show
- Scope: api:read:sales_invoices
- Permission: sales_invoices::read
- Needs the billing feature on your organisation
- Rate cost: 1 unit, read bucket.
- Cache-Control: private, no-store

Returns one invoice line in the detail view.

Lines are soft-deleted, so a deleted line is `404` unless `trashed=with` or `trashed=only` is passed; `trashed=only` 404s a live line. This flat path performs no lookup of the parent invoice: a line is readable by id to any caller holding `sales_invoices::read`, which is what plnnrly does too.

## Parameters
- sales_invoice_row (integer, path): The SalesInvoiceRow's numeric id. Accepts a soft-deleted record.
- view (string, optional): Which field set to render.
- trashed (string, optional): Whether soft-deleted rows are included.
- X-Request-Id (header, optional): A correlation id of your own. It is recorded in our logs next to the server's request id but never returned: the response header always carries the server's id. A value that does not match the pattern is discarded silently, never rejected.
- If-None-Match (header, optional): The ETag a read is conditional on. A match is answered 304 with no body.

## Response 200
- id (integer, required): Unique identifier.
- sales_invoice_id (integer, required, server-assigned): The invoice this line belongs to. Taken from the path on create and never writable afterwards: a line cannot be moved to another invoice.
- sales_invoice (Ref or SalesInvoiceSummary, required): The invoice this line belongs to.
- subscription_item_id (integer or null, required): Subscription line this invoice line was generated from, when the row came out of a subscription renewal rather than being typed by hand.
- budget_id (integer or null, required): Project budget this invoice line settles, when the row was generated from budget hours.
- exact_item_id (string or null ≤ 255, required): Exact Online article identifier this line bills against. Empty is accepted, but a row without it fails the whole invoice's Exact sync.
- exact_vat_code (string or null ≤ 255, required): Exact Online VAT code, by code rather than by id.
- exact_cost_center (string or null ≤ 255, required): Exact Online cost-centre code.
- exact_gl_account (string or null ≤ 255, required): Exact Online general-ledger revenue account for this line.
- name (string ≤ 255, required): The line label, as printed on the invoice. Exact Online prints this when description is empty.
- description (string or null, required, multiline): Longer line text. Exact Online prints this in preference to name.
- quantity (decimal (2 dp), required): Number of units billed. Fractional and signed: a budget row carries hours, and a credit line carries a negative quantity.
- unit_price (decimal (2 dp), required): Price per unit, excluding VAT. This is what actually bills.
- hourly_rate (decimal (2 dp) or null, required): Rate plnnrly recomputes `unit_price` from when the aggregated-price toggle is switched on a budget row. Stored exactly as sent and `null` when omitted; it feeds no server-side computation.
- billable_minutes (integer, required): Minutes of budget time this line settles. Zero on a hand-typed row.
- is_aggregated_price (boolean, required): True: one line of quantity 1 priced at hours times rate. False: quantity carries the hours and `unit_price` the hourly rate.
- vat_rate (integer, required): VAT percentage as a whole number: 21 means 21%.
- vat_amount (decimal (2 dp), required, server-assigned): VAT on this line: quantity times `unit_price` times `vat_rate`, rounded to two decimals. Recomputed by the server whenever one of those three changes.
- total_amount (decimal (2 dp), required, server-assigned): Line total excluding VAT (quantity times `unit_price`), which is the convention the invoice form writes. Recomputed by the server whenever quantity or `unit_price` changes.
- sort_order (integer, required, server-assigned): Position of the line within its invoice, and the default sort key. Assigned on create; there is no way to reorder lines through the API.
- created_at (timestamp (YYYY-MM-DDThh:mm:ssZ), required): Creation timestamp.
- updated_at (timestamp (YYYY-MM-DDThh:mm:ssZ), required): Last-write timestamp; use for incremental sync.
- deleted_at (timestamp (YYYY-MM-DDThh:mm:ssZ) or null, required): Soft-delete timestamp, `null` while live.
- links (SalesInvoiceRowLinks, required)
  - self (url, required): The canonical URI of this record.

## Errors
- 403 forbidden-by-policy | insufficient-permission | insufficient-token-scope: Forbidden.
- 304 : Not modified.
- 400 idempotency-key-required | invalid-cursor | invalid-query-parameter | malformed-request | unsupported-parameter: Bad request.
- 401 token-expired | unauthenticated: Unauthenticated.
- 404 endpoint-not-found | resource-not-found: Not found.
- 406 not-acceptable: Not acceptable.
- 429 rate-limit-exceeded: Too many requests.
- 500 internal-error: Server error.
- 503 tenant-unavailable: Service unavailable.

## Example
```bash
curl -G \
  'https://<your-url>/api/v2/sales-invoice-rows/1' \
  --data-urlencode 'include=sales_invoice' \
  -H 'Authorization: Bearer <token>' \
  -H 'Accept: application/json'
```