> For the complete documentation index, see [llms.txt](https://tri.gitbook.io/tri-doc/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://tri.gitbook.io/tri-doc/liquidity-pool/delete-invoice.md).

# Delete Invoice

### Liquidity Pool

<mark style="color:red;">`DELETE`</mark> <https://sandbox.triangle.digital/api/v2/liquidity\\_pool/clients/{client\\_id}/invoices/{invoice\\_id}>

Deletes one invoice of the client. Any invoice can be deleted, including one that has already been bought from — the purchase itself stays in the transaction history, only the invoice goes.

The deletion is final: there is no call that brings an invoice back, and the id is never reused.

**Path parameters**

<table data-full-width="true" data-search="false"><thead><tr><th width="230">Name</th><th width="110">Type</th><th>Description</th><th width="210">Where to take it from</th></tr></thead><tbody><tr><td><code>client_id</code></td><td>integer</td><td><strong>Required.</strong> The client the invoice belongs to.</td><td><a href="/tri-doc/liquidity-pool/get-clients.md">Get Clients</a> — <code>client_id</code></td></tr><tr><td><code>invoice_id</code></td><td>integer</td><td><strong>Required.</strong> The invoice to delete.</td><td><a href="/tri-doc/liquidity-pool/get-invoices.md">Get Invoices</a> — <code>invoice_id</code></td></tr></tbody></table>

**Headers**

<table data-full-width="true"><thead><tr><th>Name</th><th>Value</th></tr></thead><tbody><tr><td>Content-Type</td><td><code>application/json</code></td></tr></tbody></table>

**Query parameters**

<table data-full-width="true" data-search="false"><thead><tr><th width="220">Name</th><th width="110">Type</th><th>Description</th><th width="260">Example</th></tr></thead><tbody><tr><td><code>hash</code></td><td>string</td><td><strong>Required.</strong> API key.</td><td>fk5f0iuy-rr06-j4x3-i75b-fy2s67s4ilo1</td></tr></tbody></table>

**Response fields**

<table data-full-width="true" data-search="false"><thead><tr><th width="300">Field</th><th width="110">Type</th><th>Description</th></tr></thead><tbody><tr><td><code>message</code></td><td>string</td><td>Human-readable result of the call.</td></tr><tr><td><code>success</code></td><td>boolean</td><td>Whether the invoice was deleted; a refused call answers HTTP 400.</td></tr><tr><td><code>data.invoice_id</code></td><td>integer</td><td>The invoice that was deleted.</td></tr><tr><td><code>operations_count</code></td><td>integer</td><td>Always <code>1</code>.</td></tr></tbody></table>

**Response**

{% tabs %}
{% tab title="200" %}
{% code fullWidth="false" %}

```json
{
    "message": "Invoice deleted successfully",
    "success": true,
    "data": {
        "invoice_id": 61
    },
    "operations_count": 1
}
```

{% endcode %}
{% endtab %}

{% tab title="400" %}
Nothing was deleted. `Invoice not found for this client.` — the invoice is unknown or belongs to another client.

```json
{
    "message": "Invoice not found for this client.",
    "success": false,
    "data": {},
    "operations_count": 1
}
```

{% endtab %}
{% endtabs %}