curl --request PATCH \
  --url https://api.slash.com/card-group/{cardGroupId}/spending-constraint \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "merchantCategoryRule": {
    "merchantCategories": [
      "<string>"
    ]
  },
  "merchantRule": {
    "merchants": [
      "<string>"
    ]
  },
  "spendingRule": {
    "utilizationLimit": {
      "timezone": "<string>",
      "startDate": "<string>"
    },
    "utilizationLimitV2": [
      {
        "timezone": "<string>",
        "startDate": "<string>"
      }
    ],
    "transactionSizeLimit": {}
  },
  "countryRule": {
    "countries": [
      "<string>"
    ]
  },
  "merchantCategoryCodeRule": {
    "merchantCategoryCodes": [
      "<string>"
    ]
  }
}
'

{
  "merchantCategoryRule": {
    "merchantCategories": [
      "<string>"
    ]
  },
  "merchantRule": {
    "merchants": [
      "<string>"
    ]
  },
  "spendingRule": {
    "utilizationLimit": {
      "limitAmount": {
        "amountCents": 123
      },
      "timezone": "<string>",
      "startDate": "<string>"
    },
    "utilizationLimitV2": [
      {
        "limitAmount": {
          "amountCents": 123
        },
        "timezone": "<string>",
        "startDate": "<string>"
      }
    ],
    "transactionSizeLimit": {
      "minimum": {
        "amountCents": 123
      },
      "maximum": {
        "amountCents": 123
      }
    }
  },
  "countryRule": {
    "countries": [
      "<string>"
    ]
  },
  "merchantCategoryCodeRule": {
    "merchantCategoryCodes": [
      "<string>"
    ]
  }
}