Subscription Plans

Add products or variants to an existing subscription group

Adds one or more products and/or product variants to an existing subscription group (selling plan group). This endpoint provides a simple way to expand the product catalog eligible for subscription without modifying the group’s configuration or existing product assignments.

Key Features:

Add multiple products and variants in a single request
Preserves existing product and variant assignments
Maintains the order of products as provided
Updates delivery profiles automatically if needed
Synchronously updates Shopify and returns the updated group
Optional response enhancement with added products information

Important Notes:

Product IDs should be numeric Shopify product IDs without the gid:// prefix
Variant IDs should be numeric Shopify variant IDs without the gid:// prefix
Adding products also makes all their variants eligible for subscription
Adding specific variants limits subscription eligibility to those variants only
Duplicate products/variants are handled gracefully by Shopify
URL length limits apply to the comma-separated lists (use bulk endpoint for large additions)
Include ‘x-return-short-response: true’ header to get only added products/variants information in response

Use Cases:

Launch new products with subscription options
Add seasonal items to existing subscription groups
Enable subscription for specific product variants
Expand subscription eligibility without changing plan configurations
Track which products were added in the current request

Authentication: Requires valid X-API-Key header

PUT

api

external

subscription-groups

{id}

add-products

Add products or variants to an existing subscription group

curl --request PUT \
  --url https://subscription-admin.appstle.com/api/external/v2/subscription-groups/{id}/add-products \
  --header 'X-API-Key: <x-api-key>'

import requests

url = "https://subscription-admin.appstle.com/api/external/v2/subscription-groups/{id}/add-products"

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-groups/{id}/add-products', 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-groups/{id}/add-products';
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-groups/{id}/add-products",
  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-groups/{id}/add-products"

	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-groups/{id}/add-products")

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

{
  "groupName": "Monthly Coffee Subscription",
  "id": 123456789,
  "productCount": 10,
  "productIds": "[{\"id\":987654321,\"title\":\"Premium Coffee Blend\"},{\"id\":987654322,\"title\":\"Organic Dark Roast\"},{\"id\":987654323,\"title\":\"Colombian Single Origin\"}]",
  "productVariantCount": 35,
  "subscriptionPlans": [
    {
      "discountEnabled": true,
      "discountOffer": 10,
      "discountType": "PERCENTAGE",
      "frequencyCount": 1,
      "frequencyDescription": "Get fresh coffee delivered to your door every month",
      "frequencyInterval": "MONTH",
      "frequencyName": "Delivered Monthly",
      "id": "gid://shopify/SellingPlan/111111",
      "planType": "PAY_AS_YOU_GO"
    }
  ],
  "variantIds": "[{\"id\":123456789,\"title\":\"250g Bag\"},{\"id\":123456790,\"title\":\"500g Bag\"}]"
}

Headers

X-API-Key

string

required

API Key for authentication

x-return-short-response

boolean

default:false

Header to indicate if response should return only added products ID information. Set to 'true' for minimal response, any other value or omitted for full response.

Path Parameters

integer<int64>

required

Subscription group ID (numeric ID)

Query Parameters

api_key

string

API Key (Deprecated - Use X-API-Key header instead)

productIds

string

Comma-separated list of Shopify product IDs to add. Adding a product makes all its variants eligible for subscription. Use numeric IDs only (e.g., '987654321,987654322,987654323')

Pattern: ^\d+(,\d+)*$

variantIds

string

Comma-separated list of Shopify variant IDs to add. Use this to enable subscription for specific variants only. Use numeric IDs only (e.g., '123456789,123456790,123456791')

Pattern: ^\d+(,\d+)*$

Response

Products/variants successfully added to subscription group

Option 1
Option 2

accessoryProductIds

string

deleteProducts

object

Show child attributes

groupName

string

integer<int64>

productCount

integer<int64>

productId

string

productIds

string

productVariantCount

integer<int64>

subscriptionPlans

object[]

Show child attributes

translations

string

updateProducts

object

Show child attributes

variantIds

string

Add products or variants to an existing subscription group

curl --request PUT \
  --url https://subscription-admin.appstle.com/api/external/v2/subscription-groups/{id}/add-products \
  --header 'X-API-Key: <x-api-key>'

import requests

url = "https://subscription-admin.appstle.com/api/external/v2/subscription-groups/{id}/add-products"

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-groups/{id}/add-products', 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-groups/{id}/add-products';
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-groups/{id}/add-products",
  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-groups/{id}/add-products"

	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-groups/{id}/add-products")

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

{
  "groupName": "Monthly Coffee Subscription",
  "id": 123456789,
  "productCount": 10,
  "productIds": "[{\"id\":987654321,\"title\":\"Premium Coffee Blend\"},{\"id\":987654322,\"title\":\"Organic Dark Roast\"},{\"id\":987654323,\"title\":\"Colombian Single Origin\"}]",
  "productVariantCount": 35,
  "subscriptionPlans": [
    {
      "discountEnabled": true,
      "discountOffer": 10,
      "discountType": "PERCENTAGE",
      "frequencyCount": 1,
      "frequencyDescription": "Get fresh coffee delivered to your door every month",
      "frequencyInterval": "MONTH",
      "frequencyName": "Delivered Monthly",
      "id": "gid://shopify/SellingPlan/111111",
      "planType": "PAY_AS_YOU_GO"
    }
  ],
  "variantIds": "[{\"id\":123456789,\"title\":\"250g Bag\"},{\"id\":123456790,\"title\":\"500g Bag\"}]"
}

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Add products or variants to an existing subscription group

Headers

Path Parameters

Query Parameters

Response