URL: /baas/api/reference/financial-operations/prepare-financial-operation

---
title: 'Prepare financial operation'
description: 'Prepare a financial operation before execution. Returns a preparedOrderId used by the execute endpoint.'
---

## Endpoint

`POST /api/v2.1/fintrans/{accountId}/types/{operationType}/prepare`

<Note>
  This endpoint requires `X-Forwarded-From` and a device header. The backend accepts any of:
  `deviceId`, `X-Device-Id`, `device-id`.
</Note>

## Sample cURL

```bash
curl --request POST \
  --url 'https://sandbox.finhub.cloud/api/v2.1/fintrans/{accountId}/types/{operationType}/prepare' \
  --header 'Authorization: Bearer <ACCESS_TOKEN>' \
  --header 'X-Tenant-Id: <TENANT_ID>' \
  --header 'Content-Type: application/json' \
  --header 'Accept: application/json' \
  --header 'User-Agent: <USER_AGENT>' \
  --header 'X-Forwarded-From: <FORWARDED_FROM>' \
  --header 'platform: Web' \
  --header 'deviceId: <DEVICE_ID>' \
  --data '{
    "type": "INTERNAL",
    "target": {
      "name": "John Customer",
      "iban": "LT213320011000055860"
    },
    "currency": "EUR",
    "beneficiaryName": "John Customer",
    "amount": {
      "value": "100000",
      "scale": 2,
      "currency": "EUR"
    },
    "beneficiaryId": "eba40e17-e539-430e-a6cc-2b0f01e4c86e",
    "sourceAccount": {
      "walletId": "d7d94804-4d8b-45af-862f-77cbcef740f4"
    },
    "companyName": "John Customer",
    "description": "Internal funding transfer to customer wallet",
    "consent": {
      "consentReference": "f3822ff0-3986-4fef-84eb-7b517e657b6f"
    }
  }'
```

## Response Example

```json
{
  "code": 200,
  "data": {
    "preparedOrderId": "621d1386-f2fb-4655-88a8-997db0ec446a",
    "status": "READY"
  },
  "message": "Success"
}
```

<Note>
  Use the returned `preparedOrderId` as input to the execute endpoint.
</Note>

## Missing Headers Error Example

```json
{
  "code": 500,
  "data": {
    "deviceId_accepted": [
      "deviceId",
      "X-Device-Id",
      "device-id"
    ],
    "missingHeaders": [
      "X-Forwarded-From",
      "deviceId"
    ]
  },
  "message": "Missing required header(s)"
}
```