curl --request POST \
  --url https://api.slash.com/invoice/{invoiceId}/unreconcile \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
[
  {
    "transactionType": "external",
    "transaction": {
      "paymentMethod": "inbound_ach_transfer",
      "paidAt": "<string>"
    }
  }
]
'

{
  "invoice": {
    "id": "<string>",
    "status": "void",
    "collectedAmountCents": 123,
    "invoiceDetailsId": "<string>",
    "accountId": "<string>",
    "legalEntityContactId": "<string>",
    "invoiceTransactions": [
      {
        "transactionType": "external",
        "transaction": {
          "paymentMethod": "inbound_ach_transfer",
          "paidAt": "<string>"
        }
      }
    ],
    "invoicePaymentMethods": [
      {
        "method": "inbound_ach_transfer",
        "config": {
          "passFeeToPayer": true
        }
      }
    ],
    "closedAt": "2023-11-07T05:31:56Z"
  },
  "invoiceDetails": {
    "id": "<string>",
    "issuedAt": "2023-11-07T05:31:56Z",
    "dueAt": "2023-11-07T05:31:56Z",
    "invoiceTz": "America/New_York",
    "currency": "<string>",
    "lineItemsAndTotals": {
      "lineItems": [
        {
          "name": "<string>",
          "quantity": 123,
          "priceCents": 123
        }
      ],
      "subtotalCents": 123,
      "totalAmountCents": 123,
      "discount": {
        "type": "percentage",
        "percent": 123
      },
      "tax": {
        "type": "percentage",
        "percent": 123
      }
    },
    "invoiceNumber": "<string>",
    "documentId": "<string>",
    "billedTo": {
      "name": "<string>",
      "email": "<string>",
      "address": {
        "addressLine": "<string>",
        "addressCity": "<string>",
        "addressState": "<string>",
        "addressZip": "<string>",
        "addressLine2": "<string>",
        "addressCountry": "<string>"
      },
      "ccEmails": [
        "<string>"
      ]
    },
    "version": 2,
    "memo": "<string>"
  },
  "invoiceAccount": {
    "id": "<string>",
    "name": "<string>",
    "slashAccountGroupId": "<string>",
    "accountType": "default",
    "accountNumber": "<string>",
    "routingNumber": "<string>",
    "closedAt": "<string>"
  }
}