curl --request PUT \
  --url https://{subdomain}.outseta.com/api/v1/billing/invoices/{invoiceUid} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "Uid": "string",
  "_objectType": "string",
  "ActivityEventData": {},
  "InvoiceDate": "string",
  "PaymentReminderSentDate": "string",
  "Number": 0,
  "BillingInvoiceStatus": 1,
  "Subscription": {
    "Uid": "string",
    "_objectType": "string",
    "Created": "string",
    "Updated": "string",
    "ActivityEventData": {},
    "BillingRenewalTerm": 1,
    "Account": {},
    "Plan": {},
    "Quantity": 0,
    "StartDate": "string",
    "EndDate": "string",
    "ExpirationDate": "string",
    "RenewalDate": "string",
    "NewRequiredQuantity": 0,
    "IsPlanUpgradeRequired": false,
    "PlanUpgradeRequiredMessage": "string",
    "SubscriptionAddOns": [],
    "DiscountCouponSubscriptions": [],
    "DiscountCode": "string",
    "DiscountCouponExpirationDate": "string",
    "LatestInvoice": {},
    "Rate": 0
  },
  "Amount": 0,
  "AmountOutstanding": 0,
  "InvoiceLineItems": [
    {
      "Uid": "string",
      "_objectType": "string",
      "Created": "string",
      "Updated": "string",
      "ActivityEventData": {},
      "StartDate": "string",
      "EndDate": "string",
      "Description": "string",
      "UnitOfMeasure": "string",
      "Quantity": 0,
      "Rate": 0,
      "Amount": 0,
      "Tax": 0,
      "Invoice": {},
      "LineItemType": 1,
      "EntityId": 0,
      "StripeTaxReference": "string",
      "StripeTaxLineItemId": "string",
      "EntityUid": "string"
    }
  ],
  "IsUserGenerated": false,
  "StripeTaxCalculationId": "string",
  "StripeTaxBehavior": "string",
  "AmountCredit": 0,
  "AmountDiscount": 0,
  "AmountPaid": 0,
  "AmountRefunded": 0,
  "AmountSubtotal": 0,
  "AmountTax": 0,
  "AmountTaxRefunded": 0,
  "IsTaxable": false,
  "HasPaymentGatewayTransactions": false,
  "StripePaymentTransactionIds": "string",
  "StripeRefundTransactionIds": "string",
  "StripeTaxRefundTransactionIds": "string"
}
'

import requests

url = "https://{subdomain}.outseta.com/api/v1/billing/invoices/{invoiceUid}"

payload = {
    "Uid": "string",
    "_objectType": "string",
    "ActivityEventData": {},
    "InvoiceDate": "string",
    "PaymentReminderSentDate": "string",
    "Number": 0,
    "BillingInvoiceStatus": 1,
    "Subscription": {
        "Uid": "string",
        "_objectType": "string",
        "Created": "string",
        "Updated": "string",
        "ActivityEventData": {},
        "BillingRenewalTerm": 1,
        "Account": {},
        "Plan": {},
        "Quantity": 0,
        "StartDate": "string",
        "EndDate": "string",
        "ExpirationDate": "string",
        "RenewalDate": "string",
        "NewRequiredQuantity": 0,
        "IsPlanUpgradeRequired": False,
        "PlanUpgradeRequiredMessage": "string",
        "SubscriptionAddOns": [],
        "DiscountCouponSubscriptions": [],
        "DiscountCode": "string",
        "DiscountCouponExpirationDate": "string",
        "LatestInvoice": {},
        "Rate": 0
    },
    "Amount": 0,
    "AmountOutstanding": 0,
    "InvoiceLineItems": [
        {
            "Uid": "string",
            "_objectType": "string",
            "Created": "string",
            "Updated": "string",
            "ActivityEventData": {},
            "StartDate": "string",
            "EndDate": "string",
            "Description": "string",
            "UnitOfMeasure": "string",
            "Quantity": 0,
            "Rate": 0,
            "Amount": 0,
            "Tax": 0,
            "Invoice": {},
            "LineItemType": 1,
            "EntityId": 0,
            "StripeTaxReference": "string",
            "StripeTaxLineItemId": "string",
            "EntityUid": "string"
        }
    ],
    "IsUserGenerated": False,
    "StripeTaxCalculationId": "string",
    "StripeTaxBehavior": "string",
    "AmountCredit": 0,
    "AmountDiscount": 0,
    "AmountPaid": 0,
    "AmountRefunded": 0,
    "AmountSubtotal": 0,
    "AmountTax": 0,
    "AmountTaxRefunded": 0,
    "IsTaxable": False,
    "HasPaymentGatewayTransactions": False,
    "StripePaymentTransactionIds": "string",
    "StripeRefundTransactionIds": "string",
    "StripeTaxRefundTransactionIds": "string"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.put(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'PUT',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    Uid: 'string',
    _objectType: 'string',
    ActivityEventData: {},
    InvoiceDate: 'string',
    PaymentReminderSentDate: 'string',
    Number: 0,
    BillingInvoiceStatus: 1,
    Subscription: {
      Uid: 'string',
      _objectType: 'string',
      Created: 'string',
      Updated: 'string',
      ActivityEventData: {},
      BillingRenewalTerm: 1,
      Account: {},
      Plan: {},
      Quantity: 0,
      StartDate: 'string',
      EndDate: 'string',
      ExpirationDate: 'string',
      RenewalDate: 'string',
      NewRequiredQuantity: 0,
      IsPlanUpgradeRequired: false,
      PlanUpgradeRequiredMessage: 'string',
      SubscriptionAddOns: [],
      DiscountCouponSubscriptions: [],
      DiscountCode: 'string',
      DiscountCouponExpirationDate: 'string',
      LatestInvoice: {},
      Rate: 0
    },
    Amount: 0,
    AmountOutstanding: 0,
    InvoiceLineItems: [
      {
        Uid: 'string',
        _objectType: 'string',
        Created: 'string',
        Updated: 'string',
        ActivityEventData: {},
        StartDate: 'string',
        EndDate: 'string',
        Description: 'string',
        UnitOfMeasure: 'string',
        Quantity: 0,
        Rate: 0,
        Amount: 0,
        Tax: 0,
        Invoice: {},
        LineItemType: 1,
        EntityId: 0,
        StripeTaxReference: 'string',
        StripeTaxLineItemId: 'string',
        EntityUid: 'string'
      }
    ],
    IsUserGenerated: false,
    StripeTaxCalculationId: 'string',
    StripeTaxBehavior: 'string',
    AmountCredit: 0,
    AmountDiscount: 0,
    AmountPaid: 0,
    AmountRefunded: 0,
    AmountSubtotal: 0,
    AmountTax: 0,
    AmountTaxRefunded: 0,
    IsTaxable: false,
    HasPaymentGatewayTransactions: false,
    StripePaymentTransactionIds: 'string',
    StripeRefundTransactionIds: 'string',
    StripeTaxRefundTransactionIds: 'string'
  })
};

fetch('https://{subdomain}.outseta.com/api/v1/billing/invoices/{invoiceUid}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://{subdomain}.outseta.com/api/v1/billing/invoices/{invoiceUid}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PUT",
  CURLOPT_POSTFIELDS => json_encode([
    'Uid' => 'string',
    '_objectType' => 'string',
    'ActivityEventData' => [
        
    ],
    'InvoiceDate' => 'string',
    'PaymentReminderSentDate' => 'string',
    'Number' => 0,
    'BillingInvoiceStatus' => 1,
    'Subscription' => [
        'Uid' => 'string',
        '_objectType' => 'string',
        'Created' => 'string',
        'Updated' => 'string',
        'ActivityEventData' => [
                
        ],
        'BillingRenewalTerm' => 1,
        'Account' => [
                
        ],
        'Plan' => [
                
        ],
        'Quantity' => 0,
        'StartDate' => 'string',
        'EndDate' => 'string',
        'ExpirationDate' => 'string',
        'RenewalDate' => 'string',
        'NewRequiredQuantity' => 0,
        'IsPlanUpgradeRequired' => false,
        'PlanUpgradeRequiredMessage' => 'string',
        'SubscriptionAddOns' => [
                
        ],
        'DiscountCouponSubscriptions' => [
                
        ],
        'DiscountCode' => 'string',
        'DiscountCouponExpirationDate' => 'string',
        'LatestInvoice' => [
                
        ],
        'Rate' => 0
    ],
    'Amount' => 0,
    'AmountOutstanding' => 0,
    'InvoiceLineItems' => [
        [
                'Uid' => 'string',
                '_objectType' => 'string',
                'Created' => 'string',
                'Updated' => 'string',
                'ActivityEventData' => [
                                
                ],
                'StartDate' => 'string',
                'EndDate' => 'string',
                'Description' => 'string',
                'UnitOfMeasure' => 'string',
                'Quantity' => 0,
                'Rate' => 0,
                'Amount' => 0,
                'Tax' => 0,
                'Invoice' => [
                                
                ],
                'LineItemType' => 1,
                'EntityId' => 0,
                'StripeTaxReference' => 'string',
                'StripeTaxLineItemId' => 'string',
                'EntityUid' => 'string'
        ]
    ],
    'IsUserGenerated' => false,
    'StripeTaxCalculationId' => 'string',
    'StripeTaxBehavior' => 'string',
    'AmountCredit' => 0,
    'AmountDiscount' => 0,
    'AmountPaid' => 0,
    'AmountRefunded' => 0,
    'AmountSubtotal' => 0,
    'AmountTax' => 0,
    'AmountTaxRefunded' => 0,
    'IsTaxable' => false,
    'HasPaymentGatewayTransactions' => false,
    'StripePaymentTransactionIds' => 'string',
    'StripeRefundTransactionIds' => 'string',
    'StripeTaxRefundTransactionIds' => 'string'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://{subdomain}.outseta.com/api/v1/billing/invoices/{invoiceUid}"

	payload := strings.NewReader("{\n  \"Uid\": \"string\",\n  \"_objectType\": \"string\",\n  \"ActivityEventData\": {},\n  \"InvoiceDate\": \"string\",\n  \"PaymentReminderSentDate\": \"string\",\n  \"Number\": 0,\n  \"BillingInvoiceStatus\": 1,\n  \"Subscription\": {\n    \"Uid\": \"string\",\n    \"_objectType\": \"string\",\n    \"Created\": \"string\",\n    \"Updated\": \"string\",\n    \"ActivityEventData\": {},\n    \"BillingRenewalTerm\": 1,\n    \"Account\": {},\n    \"Plan\": {},\n    \"Quantity\": 0,\n    \"StartDate\": \"string\",\n    \"EndDate\": \"string\",\n    \"ExpirationDate\": \"string\",\n    \"RenewalDate\": \"string\",\n    \"NewRequiredQuantity\": 0,\n    \"IsPlanUpgradeRequired\": false,\n    \"PlanUpgradeRequiredMessage\": \"string\",\n    \"SubscriptionAddOns\": [],\n    \"DiscountCouponSubscriptions\": [],\n    \"DiscountCode\": \"string\",\n    \"DiscountCouponExpirationDate\": \"string\",\n    \"LatestInvoice\": {},\n    \"Rate\": 0\n  },\n  \"Amount\": 0,\n  \"AmountOutstanding\": 0,\n  \"InvoiceLineItems\": [\n    {\n      \"Uid\": \"string\",\n      \"_objectType\": \"string\",\n      \"Created\": \"string\",\n      \"Updated\": \"string\",\n      \"ActivityEventData\": {},\n      \"StartDate\": \"string\",\n      \"EndDate\": \"string\",\n      \"Description\": \"string\",\n      \"UnitOfMeasure\": \"string\",\n      \"Quantity\": 0,\n      \"Rate\": 0,\n      \"Amount\": 0,\n      \"Tax\": 0,\n      \"Invoice\": {},\n      \"LineItemType\": 1,\n      \"EntityId\": 0,\n      \"StripeTaxReference\": \"string\",\n      \"StripeTaxLineItemId\": \"string\",\n      \"EntityUid\": \"string\"\n    }\n  ],\n  \"IsUserGenerated\": false,\n  \"StripeTaxCalculationId\": \"string\",\n  \"StripeTaxBehavior\": \"string\",\n  \"AmountCredit\": 0,\n  \"AmountDiscount\": 0,\n  \"AmountPaid\": 0,\n  \"AmountRefunded\": 0,\n  \"AmountSubtotal\": 0,\n  \"AmountTax\": 0,\n  \"AmountTaxRefunded\": 0,\n  \"IsTaxable\": false,\n  \"HasPaymentGatewayTransactions\": false,\n  \"StripePaymentTransactionIds\": \"string\",\n  \"StripeRefundTransactionIds\": \"string\",\n  \"StripeTaxRefundTransactionIds\": \"string\"\n}")

	req, _ := http.NewRequest("PUT", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.put("https://{subdomain}.outseta.com/api/v1/billing/invoices/{invoiceUid}")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"Uid\": \"string\",\n  \"_objectType\": \"string\",\n  \"ActivityEventData\": {},\n  \"InvoiceDate\": \"string\",\n  \"PaymentReminderSentDate\": \"string\",\n  \"Number\": 0,\n  \"BillingInvoiceStatus\": 1,\n  \"Subscription\": {\n    \"Uid\": \"string\",\n    \"_objectType\": \"string\",\n    \"Created\": \"string\",\n    \"Updated\": \"string\",\n    \"ActivityEventData\": {},\n    \"BillingRenewalTerm\": 1,\n    \"Account\": {},\n    \"Plan\": {},\n    \"Quantity\": 0,\n    \"StartDate\": \"string\",\n    \"EndDate\": \"string\",\n    \"ExpirationDate\": \"string\",\n    \"RenewalDate\": \"string\",\n    \"NewRequiredQuantity\": 0,\n    \"IsPlanUpgradeRequired\": false,\n    \"PlanUpgradeRequiredMessage\": \"string\",\n    \"SubscriptionAddOns\": [],\n    \"DiscountCouponSubscriptions\": [],\n    \"DiscountCode\": \"string\",\n    \"DiscountCouponExpirationDate\": \"string\",\n    \"LatestInvoice\": {},\n    \"Rate\": 0\n  },\n  \"Amount\": 0,\n  \"AmountOutstanding\": 0,\n  \"InvoiceLineItems\": [\n    {\n      \"Uid\": \"string\",\n      \"_objectType\": \"string\",\n      \"Created\": \"string\",\n      \"Updated\": \"string\",\n      \"ActivityEventData\": {},\n      \"StartDate\": \"string\",\n      \"EndDate\": \"string\",\n      \"Description\": \"string\",\n      \"UnitOfMeasure\": \"string\",\n      \"Quantity\": 0,\n      \"Rate\": 0,\n      \"Amount\": 0,\n      \"Tax\": 0,\n      \"Invoice\": {},\n      \"LineItemType\": 1,\n      \"EntityId\": 0,\n      \"StripeTaxReference\": \"string\",\n      \"StripeTaxLineItemId\": \"string\",\n      \"EntityUid\": \"string\"\n    }\n  ],\n  \"IsUserGenerated\": false,\n  \"StripeTaxCalculationId\": \"string\",\n  \"StripeTaxBehavior\": \"string\",\n  \"AmountCredit\": 0,\n  \"AmountDiscount\": 0,\n  \"AmountPaid\": 0,\n  \"AmountRefunded\": 0,\n  \"AmountSubtotal\": 0,\n  \"AmountTax\": 0,\n  \"AmountTaxRefunded\": 0,\n  \"IsTaxable\": false,\n  \"HasPaymentGatewayTransactions\": false,\n  \"StripePaymentTransactionIds\": \"string\",\n  \"StripeRefundTransactionIds\": \"string\",\n  \"StripeTaxRefundTransactionIds\": \"string\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://{subdomain}.outseta.com/api/v1/billing/invoices/{invoiceUid}")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Put.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"Uid\": \"string\",\n  \"_objectType\": \"string\",\n  \"ActivityEventData\": {},\n  \"InvoiceDate\": \"string\",\n  \"PaymentReminderSentDate\": \"string\",\n  \"Number\": 0,\n  \"BillingInvoiceStatus\": 1,\n  \"Subscription\": {\n    \"Uid\": \"string\",\n    \"_objectType\": \"string\",\n    \"Created\": \"string\",\n    \"Updated\": \"string\",\n    \"ActivityEventData\": {},\n    \"BillingRenewalTerm\": 1,\n    \"Account\": {},\n    \"Plan\": {},\n    \"Quantity\": 0,\n    \"StartDate\": \"string\",\n    \"EndDate\": \"string\",\n    \"ExpirationDate\": \"string\",\n    \"RenewalDate\": \"string\",\n    \"NewRequiredQuantity\": 0,\n    \"IsPlanUpgradeRequired\": false,\n    \"PlanUpgradeRequiredMessage\": \"string\",\n    \"SubscriptionAddOns\": [],\n    \"DiscountCouponSubscriptions\": [],\n    \"DiscountCode\": \"string\",\n    \"DiscountCouponExpirationDate\": \"string\",\n    \"LatestInvoice\": {},\n    \"Rate\": 0\n  },\n  \"Amount\": 0,\n  \"AmountOutstanding\": 0,\n  \"InvoiceLineItems\": [\n    {\n      \"Uid\": \"string\",\n      \"_objectType\": \"string\",\n      \"Created\": \"string\",\n      \"Updated\": \"string\",\n      \"ActivityEventData\": {},\n      \"StartDate\": \"string\",\n      \"EndDate\": \"string\",\n      \"Description\": \"string\",\n      \"UnitOfMeasure\": \"string\",\n      \"Quantity\": 0,\n      \"Rate\": 0,\n      \"Amount\": 0,\n      \"Tax\": 0,\n      \"Invoice\": {},\n      \"LineItemType\": 1,\n      \"EntityId\": 0,\n      \"StripeTaxReference\": \"string\",\n      \"StripeTaxLineItemId\": \"string\",\n      \"EntityUid\": \"string\"\n    }\n  ],\n  \"IsUserGenerated\": false,\n  \"StripeTaxCalculationId\": \"string\",\n  \"StripeTaxBehavior\": \"string\",\n  \"AmountCredit\": 0,\n  \"AmountDiscount\": 0,\n  \"AmountPaid\": 0,\n  \"AmountRefunded\": 0,\n  \"AmountSubtotal\": 0,\n  \"AmountTax\": 0,\n  \"AmountTaxRefunded\": 0,\n  \"IsTaxable\": false,\n  \"HasPaymentGatewayTransactions\": false,\n  \"StripePaymentTransactionIds\": \"string\",\n  \"StripeRefundTransactionIds\": \"string\",\n  \"StripeTaxRefundTransactionIds\": \"string\"\n}"

response = http.request(request)
puts response.read_body

{
  "Uid": "string",
  "_objectType": "string",
  "Created": "string",
  "Updated": "string",
  "ActivityEventData": {},
  "InvoiceDate": "string",
  "PaymentReminderSentDate": "string",
  "Number": 0,
  "BillingInvoiceStatus": 1,
  "Subscription": {
    "Uid": "string",
    "_objectType": "string",
    "Created": "string",
    "Updated": "string",
    "ActivityEventData": {},
    "BillingRenewalTerm": 1,
    "Account": {},
    "Plan": {},
    "Quantity": 0,
    "StartDate": "string",
    "EndDate": "string",
    "ExpirationDate": "string",
    "RenewalDate": "string",
    "NewRequiredQuantity": 0,
    "IsPlanUpgradeRequired": false,
    "PlanUpgradeRequiredMessage": "string",
    "SubscriptionAddOns": [],
    "DiscountCouponSubscriptions": [],
    "DiscountCode": "string",
    "DiscountCouponExpirationDate": "string",
    "LatestInvoice": {},
    "Rate": 0
  },
  "Amount": 0,
  "AmountOutstanding": 0,
  "InvoiceLineItems": [
    {
      "Uid": "string",
      "_objectType": "string",
      "Created": "string",
      "Updated": "string",
      "ActivityEventData": {},
      "StartDate": "string",
      "EndDate": "string",
      "Description": "string",
      "UnitOfMeasure": "string",
      "Quantity": 0,
      "Rate": 0,
      "Amount": 0,
      "Tax": 0,
      "Invoice": {},
      "LineItemType": 1,
      "EntityId": 0,
      "StripeTaxReference": "string",
      "StripeTaxLineItemId": "string",
      "EntityUid": "string"
    }
  ],
  "IsUserGenerated": false,
  "StripeTaxCalculationId": "string",
  "StripeTaxBehavior": "string",
  "AmountCredit": 0,
  "AmountDiscount": 0,
  "AmountPaid": 0,
  "AmountRefunded": 0,
  "AmountSubtotal": 0,
  "AmountTax": 0,
  "AmountTaxRefunded": 0,
  "IsTaxable": false,
  "HasPaymentGatewayTransactions": false,
  "StripePaymentTransactionIds": "string",
  "StripeRefundTransactionIds": "string",
  "StripeTaxRefundTransactionIds": "string"
}