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# Create a credit note

> Reverse a posted invoice with a credit note. Input schema, a tools/call example and an example result.

Source: https://cotlet.dev/docs/mcp/odoo/create_credit_note

Docs sections: [Get started](https://cotlet.dev/docs.md) · [REST API](https://cotlet.dev/docs/api.md) · [MCP](https://cotlet.dev/docs/mcp.md) · [SDKs & CLI](https://cotlet.dev/docs/sdks.md) · [Integrations](https://cotlet.dev/docs/integrations.md)

Reverse a posted invoice with a credit note.

Odoo MCP tools: https://cotlet.dev/docs/mcp/odoo.md

MCP tool: `odoo_write → create_credit_note`

Access: write. Confirm: waits for the user's OK before it runs.

Uses the Credit Note window of the invoice. In reverse mode the credit note is a draft prefilled from the original invoice. In reverse_and_new mode it is validated, reconciled with the original and a new draft invoice is opened. If money goes back to the customer, register that payment afterwards. By default you confirm each call; you can switch that off for this tool.

## Parameters

| Name | Type | Required | Description |
|---|---|---|---|
| `invoice_id` | integer | yes | Invoice ID from list_invoices or create_draft_invoice. |
| `reason` | string | yes | Reason shown on the credit note. |
| `mode` | enum | no | reverse: a draft credit note you can adjust; reverse_and_new: a validated credit note plus a new draft invoice. Default: reverse. |

## tools/call

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "odoo_write",
    "arguments": {
      "operation": "create_credit_note",
      "arguments": {
        "invoice_id": 1,
        "reason": "reason"
      }
    }
  }
}
```

## Example response

```json
{
  "content": [
    {
      "type": "text",
      "text": "{ ... same JSON as structuredContent ... }"
    }
  ],
  "structuredContent": {
    "credit_note_id": 4230,
    "reverses": "INV/2026/00398",
    "mode": "reverse",
    "status": "draft",
    "reason": "Wrong quantity",
    "amount_total": 2150,
    "currency": "EUR"
  },
  "isError": false
}
```

Previous: [Register a payment](https://cotlet.dev/docs/mcp/odoo/register_payment.md)
Next: [Create a quotation](https://cotlet.dev/docs/mcp/odoo/create_sales_order.md)

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3. Show the user what you will send, then POST it as JSON to https://cotlet.dev/api/v1/access-requests.

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