Subscription Payments
Update subscription payment method
Updates the payment method for an existing subscription contract to use a different existing payment method. The new payment method must already be associated with the customer in Shopify.
Important Notes:
- The payment method must already exist in the customer’s Shopify payment methods
- Only valid, non-revoked payment methods can be used
- The update is processed through Shopify’s subscription draft system
- Payment method details are cached locally after successful update
Process Flow:
- Validates subscription contract exists
- Creates a draft update in Shopify
- Updates the draft with new payment method
- Commits the draft to apply changes
- Caches payment instrument details locally
- Records activity log entry
Authentication: Requires valid X-API-Key header
PUT
/
api
/
external
/
v2
/
subscription-contracts-update-existing-payment-method
Update subscription payment method
curl --request PUT \
--url https://subscription-admin.appstle.com/api/external/v2/subscription-contracts-update-existing-payment-method \
--header 'X-API-Key: <x-api-key>'import requests
url = "https://subscription-admin.appstle.com/api/external/v2/subscription-contracts-update-existing-payment-method"
headers = {"X-API-Key": "<x-api-key>"}
response = requests.put(url, headers=headers)
print(response.text)const options = {method: 'PUT', headers: {'X-API-Key': '<x-api-key>'}};
fetch('https://subscription-admin.appstle.com/api/external/v2/subscription-contracts-update-existing-payment-method', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));const url = 'https://subscription-admin.appstle.com/api/external/v2/subscription-contracts-update-existing-payment-method';
const options = {method: 'PUT', headers: {'X-API-Key': '<x-api-key>'}};
fetch(url, options)
.then(res => res.json())
.then(json => console.log(json))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://subscription-admin.appstle.com/api/external/v2/subscription-contracts-update-existing-payment-method",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "PUT",
CURLOPT_HTTPHEADER => [
"X-API-Key: <x-api-key>"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"net/http"
"io"
)
func main() {
url := "https://subscription-admin.appstle.com/api/external/v2/subscription-contracts-update-existing-payment-method"
req, _ := http.NewRequest("PUT", url, nil)
req.Header.Add("X-API-Key", "<x-api-key>")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}require 'uri'
require 'net/http'
url = URI("https://subscription-admin.appstle.com/api/external/v2/subscription-contracts-update-existing-payment-method")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Put.new(url)
request["X-API-Key"] = '<x-api-key>'
response = http.request(request)
puts response.read_body{
"message": "Payment method updated successfully"
}Headers
API Key for authentication
Query Parameters
Subscription contract ID to update payment method for. Must be a valid contract ID that belongs to the authenticated shop.
Required range:
x >= 1ID of the existing customer payment method to use. Must be a valid Shopify GraphQL payment method ID in the format 'gid://shopify/CustomerPaymentMethod/{id}'. The payment method must:
- Already exist in the customer's Shopify account
- Be in a valid state (not expired or revoked)
- Be authorized for subscription use
You can retrieve available payment methods using the customer payment methods endpoint.
Pattern:
^gid://shopify/CustomerPaymentMethod/[a-zA-Z0-9]+$Response
Payment method updated successfully
⌘I
Update subscription payment method
curl --request PUT \
--url https://subscription-admin.appstle.com/api/external/v2/subscription-contracts-update-existing-payment-method \
--header 'X-API-Key: <x-api-key>'import requests
url = "https://subscription-admin.appstle.com/api/external/v2/subscription-contracts-update-existing-payment-method"
headers = {"X-API-Key": "<x-api-key>"}
response = requests.put(url, headers=headers)
print(response.text)const options = {method: 'PUT', headers: {'X-API-Key': '<x-api-key>'}};
fetch('https://subscription-admin.appstle.com/api/external/v2/subscription-contracts-update-existing-payment-method', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));const url = 'https://subscription-admin.appstle.com/api/external/v2/subscription-contracts-update-existing-payment-method';
const options = {method: 'PUT', headers: {'X-API-Key': '<x-api-key>'}};
fetch(url, options)
.then(res => res.json())
.then(json => console.log(json))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://subscription-admin.appstle.com/api/external/v2/subscription-contracts-update-existing-payment-method",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "PUT",
CURLOPT_HTTPHEADER => [
"X-API-Key: <x-api-key>"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"net/http"
"io"
)
func main() {
url := "https://subscription-admin.appstle.com/api/external/v2/subscription-contracts-update-existing-payment-method"
req, _ := http.NewRequest("PUT", url, nil)
req.Header.Add("X-API-Key", "<x-api-key>")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}require 'uri'
require 'net/http'
url = URI("https://subscription-admin.appstle.com/api/external/v2/subscription-contracts-update-existing-payment-method")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Put.new(url)
request["X-API-Key"] = '<x-api-key>'
response = http.request(request)
puts response.read_body{
"message": "Payment method updated successfully"
}