curl --request POST \
  --url https://sandbox.hurdlr.com/rest/v5/expenses/rules \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: */*' \
  --data '
{
  "rule": [
    {
      "id": 123,
      "transactionName": "<string>",
      "vendorId": 123,
      "businessId": 123,
      "clientId": 123,
      "categoryId": 123,
      "personalCategoryId": 123,
      "templateId": 123
    }
  ]
}
'

{
  "errors": {
    "fieldErrors": {},
    "globalErrors": [
      {
        "errorMessage": "<string>"
      }
    ]
  },
  "id": "<string>",
  "webhook": {
    "userId": "<string>",
    "accountantUserId": "<string>"
  }
}