# issueDebitNote

mutation · in the family [Refunds and payment corrections](/reference/refunds-and-payment-corrections/)

## What it does

Issue a debit note — a formal “you owe us more” against an invoice.

ISSUE a DebitNote against an issued/closed Invoice: sign +, NO over-credit ceiling (an increase raises the invoice's remaining net — the CreditNote guard reads the raised headroom via the same stamps); otherwise identical to issueCreditNote.

## Who may call it

Capability area: **Refunds and payment corrections** — Refunds, corrective notes and voiding invoices.

- Owner
- Manager
- Associate Manager
- An API key whose scope allows `api:issueDebitNote`

## Arguments

| Name | Type | Required | Notes |
| --- | --- | --- | --- |
| `input` | [IssueDebitNoteInput](/types/IssueDebitNoteInput/) `IssueDebitNoteInput!` | yes | No further notes. |

## Returns

[DebitNote](/types/DebitNote/) `DebitNote!` — A DebitNote — the INCREASING corrective twin of the CreditNote (customer owes MORE — an undercharge correction, post-billing freight, an upward price adjustment): identical lifecycle + delta mechanics, OPPOSITE sign (every figure strictly POSITIVE). The tax delta recomputes over the invoice line's CAPTURED components; NO over-credit ceiling (an increase raises the invoice's remaining net — the CreditNote guard reads the raised headroom via the same cumulative stamps). NO inventory movement. Reuses the CreditNote's NoteDeltaLine/NoteDeltaTaxComponent SDL types (the /VendorInvoice entry-order precedent).

## Example request

```graphql
mutation ExampleIssueDebitNote($input: IssueDebitNoteInput!) {
  issueDebitNote(input: $input) {
    id
    sysId
    type
    caption
    status
    parentId
    rootId
    createdAt
    updatedAt
    revisionNum
    revision
    invoiceId
    orderId
    organizationId
    currency
    reason
    settlementState
    baseDeltaTotalMinor
    taxDeltaTotalMinor
    totalDeltaMinor
  }
}
```

Variables:

```json
{
  "input": {
    "caption": "Blue jeans",
    "invoiceId": "01900000-0000-7000-8000-504ef4ed0000",
    "reason": "Correcting a miscount.",
    "lines": [
      {
        "invoiceLineNo": 1,
        "amountMinor": 1
      }
    ]
  }
}
```

Send it with the envelope naming the version: `"extensions": {"at": {"version": {"name":"genesis","number":0}}}`.

## Example response

```json
{
  "data": {
    "issueDebitNote": {
      "id": "01900000-0000-7000-8000-37386ae00000",
      "sysId": "DN-EXMP-0000-000F",
      "type": "DebitNote",
      "caption": "Blue jeans",
      "status": "issued",
      "parentId": "01900000-0000-7000-8000-065235280000",
      "rootId": "01900000-0000-7000-8000-a093dd800000",
      "createdAt": "2027-01-31T00:00:00.000Z",
      "updatedAt": "2027-01-31T00:00:00.000Z",
      "revisionNum": 1,
      "revision": "01900000-0000-7000-8000-b7960e180000",
      "invoiceId": "01900000-0000-7000-8000-504ef4ed0000",
      "orderId": "01900000-0000-7000-8000-f6d8263a0000",
      "organizationId": "01900000-0000-7000-8000-44b781470000",
      "currency": "USD",
      "reason": "Correcting a miscount.",
      "settlementState": "<settlement state>",
      "baseDeltaTotalMinor": 1,
      "taxDeltaTotalMinor": 1,
      "totalDeltaMinor": 1
    }
  },
  "extensions": {
    "at": {
      "callId": "01EXAMPLE-CALL-ID",
      "version": {
        "requested": {
          "name": "genesis",
          "number": 0
        },
        "serviced": {
          "name": "genesis",
          "number": 0
        }
      }
    }
  }
}
```

## Errors this call can answer

- `VALIDATION/INVALID` — Something in the request is not valid. ([VALIDATION](/errors/VALIDATION/))
- `AUTHN/REQUIRED` — Sign in to do this. ([AUTHN](/errors/AUTHN/))
- `AUTHZ/FORBIDDEN` — Your role does not allow this action. ([AUTHZ](/errors/AUTHZ/))
- `RATE_LIMIT/THROTTLED` — Too many requests in a short time. ([RATE_LIMIT](/errors/RATE_LIMIT/))
- `NOT_FOUND/*` — That record could not be found. ([NOT_FOUND](/errors/NOT_FOUND/))
- `CONFLICT/*` — The record’s state, or a change made in the meantime, does not allow this; the codes are on the CONFLICT page. ([CONFLICT](/errors/CONFLICT/))
- `VALIDATION/VERSION_REQUIRED` — The request did not say which app version it came from. ([VALIDATION](/errors/VALIDATION/))

## Used in

- [Bill a business customer and collect on account](/use-cases/bill-a-business-customer/)