Update a subscription

curl --request PATCH \
  --url https://sandbox-api.paynext.com/subscriptions \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'X-API-Version: <x-api-version>' \
  --data '
{
  "plan": {
    "id": "price_63e6b401-3803-4f95-aae9-262a0490dafd"
  },
  "subscription": {
    "change_mode": "next_billing_date",
    "id": "sub_887934f2-de1a-4b28-a288-ba8f70c71bd3",
    "status": "<unknown>"
  }
}
'

const options = {
  method: 'PATCH',
  headers: {
    'X-API-Version': '<x-api-version>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    plan: {id: 'price_63e6b401-3803-4f95-aae9-262a0490dafd'},
    subscription: {
      change_mode: 'next_billing_date',
      id: 'sub_887934f2-de1a-4b28-a288-ba8f70c71bd3',
      status: '<unknown>'
    }
  })
};

fetch('https://sandbox-api.paynext.com/subscriptions', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

package main

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

func main() {

	url := "https://sandbox-api.paynext.com/subscriptions"

	payload := strings.NewReader("{\n  \"plan\": {\n    \"id\": \"price_63e6b401-3803-4f95-aae9-262a0490dafd\"\n  },\n  \"subscription\": {\n    \"change_mode\": \"next_billing_date\",\n    \"id\": \"sub_887934f2-de1a-4b28-a288-ba8f70c71bd3\",\n    \"status\": \"<unknown>\"\n  }\n}")

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

	req.Header.Add("X-API-Version", "<x-api-version>")
	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.patch("https://sandbox-api.paynext.com/subscriptions")
  .header("X-API-Version", "<x-api-version>")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"plan\": {\n    \"id\": \"price_63e6b401-3803-4f95-aae9-262a0490dafd\"\n  },\n  \"subscription\": {\n    \"change_mode\": \"next_billing_date\",\n    \"id\": \"sub_887934f2-de1a-4b28-a288-ba8f70c71bd3\",\n    \"status\": \"<unknown>\"\n  }\n}")
  .asString();

import requests

url = "https://sandbox-api.paynext.com/subscriptions"

payload = {
    "plan": { "id": "price_63e6b401-3803-4f95-aae9-262a0490dafd" },
    "subscription": {
        "change_mode": "next_billing_date",
        "id": "sub_887934f2-de1a-4b28-a288-ba8f70c71bd3",
        "status": "<unknown>"
    }
}
headers = {
    "X-API-Version": "<x-api-version>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://sandbox-api.paynext.com/subscriptions",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PATCH",
  CURLOPT_POSTFIELDS => json_encode([
    'plan' => [
        'id' => 'price_63e6b401-3803-4f95-aae9-262a0490dafd'
    ],
    'subscription' => [
        'change_mode' => 'next_billing_date',
        'id' => 'sub_887934f2-de1a-4b28-a288-ba8f70c71bd3',
        'status' => '<unknown>'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json",
    "X-API-Version: <x-api-version>"
  ],
]);

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

curl_close($curl);

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

{
  "created_at": "2025-05-26T10:00:00Z",
  "current_period_end": "<string>",
  "cancelled_at": "2026-06-10T14:32:08Z",
  "cancellation_details": {
    "reason": "fraud_prevention",
    "trigger_payment_id": "pay_e8a1b2c3-1d2e-3f4a-5b6c-7d8e9f0a1b2c"
  },
  "current_period_start": "<string>",
  "id": "sub_123e4567-e89b-12d3-a456-426614174000",
  "metadata": {
    "key": "value"
  },
  "next_billing_date": "2025-06-26T12:00:00Z",
  "past_due": {
    "attempt_count": 2,
    "max_attempts_count": 7
  },
  "plan": {
    "id": "price_1a2b3c4d-5e6f-7a8b-9c0d-1e2f3a4b5c6d",
    "interval": "days",
    "interval_count": 1,
    "name": "Pro Plan",
    "price": {
      "amount": 1999,
      "currency": "AED"
    },
    "tax": {
      "collect_tax": "<unknown>"
    },
    "trial_interval": "days",
    "trial_interval_count": 14,
    "trial_price": {
      "amount": 1999,
      "currency": "AED"
    },
    "type": "recurring"
  },
  "status": "trial",
  "updated_at": "2025-05-27T10:00:00Z"
}

{
  "error": {
    "message": "some error message"
  }
}

{
  "error": {
    "message": "some error message"
  }
}

{
  "error": {
    "message": "some error message"
  }
}