> ## Documentation Index
> Fetch the complete documentation index at: https://documentation.onesignal.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Copy template to another app

> Create a duplicate of a template in another app. The new template will be completely separate from the original (including having a new template_id) but will be created with all the same content.

## Overview

This API allows you to copy a template from one app (`app_id`) to another (`target_app_id`). The duplicated template will have the same content as the original, but a new unique `template_id`.

<Note>
  If you are trying to copy an email template, we also have an [Email Template Forwarding](/docs/en/email-template-forwarding) feature that does not require an API call.

  Both options support HTML and Drag & Drop email templates.
</Note>

***

## Requirements

* **Organization Membership:** Both the `app_id` and `target_app_id` must belong to the same [Organization](/docs/en/apps-organizations).
* **Authorization Required:** You must use your [Organization API key](/docs/en/keys-and-ids#organization-api-key), not an app-level REST API key.
* **Permissions Note:** Your user must have admin-level access to both the source and target apps. If not, the request will fail with a "permission denied" error.

***

## Parameters

* `template_id` (path param): UUID of the template to be copied.
* `app_id` (query param): ID of the app where the original template exists.
* `target_app_id` (body param): ID of the app where the template will be duplicated.

***

## How to Use

### 1. Locate the Template ID

Each template has a unique OneSignal-generated `template_id` (UUID v4). You can find it:

* Using the [View Templates API](/reference/view-templates)
* In the OneSignal Dashboard under **Messages > Templates > Options > Copy Template ID**

<Frame caption="Copy Template ID">
  <img src="https://mintcdn.com/onesignal/ciRrThfP6xMpI7GY/images/dashboard/templates/copy-template-id.png?fit=max&auto=format&n=ciRrThfP6xMpI7GY&q=85&s=b1b94df3f7ad6cdc5dc985e5c2f7ffeb" alt="Copy Template ID in OneSignal Dashboard" width="2208" height="1038" data-path="images/dashboard/templates/copy-template-id.png" />
</Frame>

### 2. Get App IDs

Refer to [Keys & IDs](/docs/en/keys-and-ids) to find your `app_id` and `target_app_id`.

***

## Response

The response will include:

* The new `template_id` for the copied template
* Confirmation of successful creation
* Any warnings if applicable (e.g., limited fields copied)

***


## OpenAPI

````yaml POST /templates/{template_id}/copy_to_app?app_id={app_id}
openapi: 3.1.0
info:
  title: api.onesignal.com
  version: '11.6'
servers:
  - url: https://api.onesignal.com
security:
  - {}
paths:
  /templates/{template_id}/copy_to_app?app_id={app_id}:
    post:
      summary: Copy template to another app
      description: >-
        Create a duplicate of a OneSignal message template in another app within
        the same organization. The new template will retain the same content but
        have a unique template ID.
      operationId: copy-template-to-another-app
      parameters:
        - name: template_id
          in: path
          description: >-
            The template ID in UUID v4 format. See
            [Templates](/docs/en/templates).
          schema:
            type: string
            default: YOUR_TEMPLATE_ID
          required: true
        - name: app_id
          in: query
          description: >-
            Your OneSignal App ID in UUID v4 format. See [Keys &
            IDs](/docs/en/keys-and-ids).
          required: true
          schema:
            type: string
            default: YOUR_APP_ID
        - name: Authorization
          in: header
          description: >-
            Your Organization API key with prefix `Key `. See [Keys &
            IDs](/docs/en/keys-and-ids).
          required: true
          schema:
            type: string
            default: Key YOUR_ORGANIZATION_API_KEY
      requestBody:
        content:
          application/json:
            schema:
              type: object
              required:
                - target_app_id
              properties:
                target_app_id:
                  type: string
                  description: >-
                    Specifies the OneSignal app ID that the template will be
                    copied to. Cannot be the same as the `app_id`.
                  default: YOUR_OTHER_APP_ID
      responses:
        '200':
          description: '200'
          content:
            application/json:
              schema:
                type: object
                properties:
                  success:
                    type: boolean
                    description: Whether the template was copied successfully.
        '400':
          description: '400'
          content:
            application/json:
              schema:
                oneOf:
                  - title: Bad Request (Missing Body Parameter)
                    type: object
                    properties:
                      errors:
                        type: array
                        items:
                          type: string
                          description: >-
                            Missing body parameter.Request is malformed: Failed
                            to parse app_id from request
                  - title: Bad Request (Missing Query Parameter)
                    type: object
                    properties:
                      errors:
                        type: array
                        items:
                          type: string
                          description: >-
                            Missing query parameter. app_id not found. You may
                            be missing a Content-Type: application/json header.
        '404':
          description: '404'
          content:
            application/json:
              schema:
                type: object
                properties:
                  success:
                    type: boolean
                    description: Whether the template was copied successfully.
        '429':
          description: >-
            Rate limit exceeded. Wait the number of seconds in the `Retry-After`
            header before retrying.
          headers:
            Retry-After:
              description: >-
                Number of seconds to wait before retrying the request. Always
                emitted on 429 responses.
              schema:
                type: integer
                minimum: 0
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BasicErrorResponse'
              example:
                errors:
                  - API rate limit exceeded
        '503':
          description: >-
            Service temporarily unavailable. Retry after a short backoff. The
            body may be empty or non-JSON in some failure modes.
          headers:
            Retry-After:
              description: >-
                Number of seconds to wait before retrying. Optional — may be
                absent when the response is generated upstream.
              schema:
                type: integer
                minimum: 0
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BasicErrorResponse'
              example:
                errors:
                  - Service temporarily unavailable
      deprecated: false
      x-codeSamples:
        - lang: typescript
          label: Node.js SDK
          source: |-
            import Onesignal from '@onesignal/node-onesignal';

            const configuration = Onesignal.createConfiguration({
                organizationApiKey: 'YOUR_ORGANIZATION_API_KEY',
            });
            const apiInstance = new Onesignal.DefaultApi(configuration);

            // string
            const templateId: string = "e4d3c2b1-a09f-4f1e-8d7c-6b5a4f3e2d1c";
            // string
            const appId: string = "00000000-0000-0000-0000-000000000000";
            // CopyTemplateRequest
            const copyTemplateRequest: Onesignal.CopyTemplateRequest = {
                target_app_id: "target_app_id_example",
              };

            try {
              const response = await apiInstance.copyTemplateToApp(templateId, appId, copyTemplateRequest);
              console.log(response);
            } catch (e) {
              if (e instanceof Onesignal.ApiException) {
                // `e.errorMessages` flattens any error-envelope shape to a `string[]`;
                // the raw parsed body remains on `e.body`.
                console.error("copyTemplateToApp failed: HTTP " + e.code, e.errorMessages);
              } else {
                throw e;
              }
            }
        - lang: python
          label: Python SDK
          source: >-
            import onesignal

            from onesignal.api import default_api

            from onesignal.models import *

            from pprint import pprint


            # See configuration.py for a list of all supported configuration
            parameters.

            # Some of the OneSignal endpoints require ORGANIZATION_API_KEY token
            for authorization, while others require REST_API_KEY.

            # We recommend adding both of them in the configuration page so that
            you will not need to figure it out yourself.

            configuration = onesignal.Configuration(
                rest_api_key = "YOUR_REST_API_KEY", # App REST API key required for most endpoints
                organization_api_key = "YOUR_ORGANIZATION_API_KEY" # Organization key is only required for creating new apps and other top-level endpoints
            )



            # Enter a context with an instance of the API client

            with onesignal.ApiClient(configuration) as api_client:
                # Create an instance of the API class
                api_instance = default_api.DefaultApi(api_client)
                template_id = "e4d3c2b1-a09f-4f1e-8d7c-6b5a4f3e2d1c" 
                app_id = "00000000-0000-0000-0000-000000000000" 
                copy_template_request = CopyTemplateRequest(
                    target_app_id="target_app_id_example",
                ) 

                try:
                    # Copy template to another app
                    api_response = api_instance.copy_template_to_app(template_id, app_id, copy_template_request)
                    pprint(api_response)
                except onesignal.ApiException as e:
                    print("Exception when calling DefaultApi->copy_template_to_app: %s\n" % e)
                    print("Status Code: %s" % e.status)
                    print("Response Body: %s" % e.body)
        - lang: php
          label: PHP SDK
          source: >-
            <?php

            require_once(__DIR__ . '/vendor/autoload.php');



            // Configure Bearer authorization: organization_api_key

            $config = onesignal\client\Configuration::getDefaultConfiguration()
                                                            ->setRestApiKeyToken('YOUR_REST_API_KEY')
                                                            ->setOrganizationApiKeyToken('YOUR_ORGANIZATION_API_KEY');



            $apiInstance = new onesignal\client\Api\DefaultApi(
                // If you want use custom http client, pass your client which implements `GuzzleHttp\ClientInterface`.
                // This is optional, `GuzzleHttp\Client` will be used as default.
                new GuzzleHttp\Client(),
                $config
            );

            $template_id = 'e4d3c2b1-a09f-4f1e-8d7c-6b5a4f3e2d1c'; // string

            $app_id = '00000000-0000-0000-0000-000000000000'; // string

            $copy_template_request = new
            \onesignal\client\model\CopyTemplateRequest(); //
            \onesignal\client\model\CopyTemplateRequest


            try {
                $result = $apiInstance->copyTemplateToApp($template_id, $app_id, $copy_template_request);
                print_r($result);
            } catch (\onesignal\client\ApiException $e) {
                echo 'Exception when calling DefaultApi->copyTemplateToApp: ', $e->getMessage(), PHP_EOL;
                echo 'Status Code: ', $e->getCode(), PHP_EOL;
                // getErrorMessages() flattens any error-envelope shape to a string[];
                // the raw body remains on getResponseBody().
                echo 'Error Messages: ', implode(', ', $e->getErrorMessages()), PHP_EOL;
                echo 'Response Body: ', $e->getResponseBody(), PHP_EOL;
            } catch (\Exception $e) {
                echo 'Exception when calling DefaultApi->copyTemplateToApp: ', $e->getMessage(), PHP_EOL;
            }
        - lang: go
          label: Go SDK
          source: |-
            package main

            import (
                "context"
                "fmt"
                "os"

                "github.com/OneSignal/onesignal-go-api/v5"
            )

            func main() {
                templateId := "e4d3c2b1-a09f-4f1e-8d7c-6b5a4f3e2d1c" // string | 
                appId := "00000000-0000-0000-0000-000000000000" // string | 
                copyTemplateRequest := *onesignal.NewCopyTemplateRequest("TargetAppId_example") // CopyTemplateRequest | 

                configuration := onesignal.NewConfiguration()
                apiClient := onesignal.NewAPIClient(configuration)

                orgAuth := context.WithValue(context.Background(), onesignal.OrganizationApiKey, "YOUR_ORGANIZATION_API_KEY") // Organization API key is only required for creating new apps and other top-level endpoints

                resp, r, err := apiClient.DefaultApi.CopyTemplateToApp(orgAuth, templateId).AppId(appId).CopyTemplateRequest(copyTemplateRequest).Execute()

                if err != nil {
                    fmt.Fprintf(os.Stderr, "Error when calling `DefaultApi.CopyTemplateToApp``: %v\n", err)
                    fmt.Fprintf(os.Stderr, "Full HTTP response: %v\n", r)
                    if apiErr, ok := err.(*onesignal.GenericOpenAPIError); ok {
                        // ErrorMessages() flattens any error-envelope shape to a []string;
                        // the raw body remains on Body().
                        fmt.Fprintf(os.Stderr, "Error Messages: %v\n", apiErr.ErrorMessages())
                        fmt.Fprintf(os.Stderr, "Response Body: %s\n", apiErr.Body())
                    }
                }
                // response from `CopyTemplateToApp`: TemplateResource
                fmt.Fprintf(os.Stdout, "Response from `DefaultApi.CopyTemplateToApp`: %v\n", resp)
            }
        - lang: ruby
          label: Ruby SDK
          source: >-
            require 'onesignal'

            # setup authorization

            OneSignal.configure do |config|
              # Configure Bearer authorization: organization_api_key
              config.organization_api_key = 'YOUR_ORGANIZATION_API_KEY'

            end


            api_instance = OneSignal::DefaultApi.new

            template_id = 'e4d3c2b1-a09f-4f1e-8d7c-6b5a4f3e2d1c' # String | 

            app_id = '00000000-0000-0000-0000-000000000000' # String | 

            copy_template_request =
            OneSignal::CopyTemplateRequest.new({target_app_id:
            'target_app_id_example'}) # CopyTemplateRequest | 


            begin
              # Copy template to another app
              result = api_instance.copy_template_to_app(template_id, app_id, copy_template_request)
              p result
            rescue OneSignal::ApiError => e
              puts "Error when calling DefaultApi->copy_template_to_app: #{e}"
              puts "Status Code: #{e.code}"
              # `e.error_messages` flattens any error-envelope shape to an Array<String>;
              # the raw body remains on `e.response_body`.
              puts "Error Messages: #{e.error_messages}"
              puts "Response Body: #{e.response_body}"
            end
        - lang: java
          label: Java SDK
          source: |-
            // Import classes:
            import com.onesignal.client.ApiClient;
            import com.onesignal.client.ApiException;
            import com.onesignal.client.Configuration;
            import com.onesignal.client.auth.*;
            import com.onesignal.client.model.*;
            import com.onesignal.client.api.DefaultApi;

            public class Example {
              public static void main(String[] args) {
                ApiClient defaultClient = Configuration.getDefaultApiClient();
                defaultClient.setBasePath("https://api.onesignal.com");
                
                // Configure HTTP bearer authorization: organization_api_key
                HttpBearerAuth organization_api_key = (HttpBearerAuth) defaultClient.getAuthentication("organization_api_key");
                organization_api_key.setBearerToken("YOUR_ORGANIZATION_API_KEY");

                DefaultApi apiInstance = new DefaultApi(defaultClient);
                String templateId = "e4d3c2b1-a09f-4f1e-8d7c-6b5a4f3e2d1c"; // String | 
                String appId = "00000000-0000-0000-0000-000000000000"; // String | 
                CopyTemplateRequest copyTemplateRequest = new CopyTemplateRequest(); // CopyTemplateRequest | 
                try {
                  TemplateResource result = apiInstance.copyTemplateToApp(templateId, appId, copyTemplateRequest);
                  System.out.println(result);
                } catch (ApiException e) {
                  System.err.println("Exception when calling DefaultApi#copyTemplateToApp");
                  System.err.println("Status code: " + e.getCode());
                  // getErrorMessages() flattens any error-envelope shape to a List<String>;
                  // the raw body remains on getResponseBody().
                  System.err.println("Error messages: " + e.getErrorMessages());
                  System.err.println("Reason: " + e.getResponseBody());
                  System.err.println("Response headers: " + e.getResponseHeaders());
                  e.printStackTrace();
                }
              }
            }
        - lang: csharp
          label: C# SDK
          source: |-
            using System;
            using System.Collections.Generic;
            using System.Diagnostics;
            using OneSignalApi.Api;
            using OneSignalApi.Client;
            using OneSignalApi.Model;

            namespace Example
            {
                public class CopyTemplateToAppExample
                {
                    public static void Main()
                    {
                        Configuration config = new Configuration();
                        config.BasePath = "https://api.onesignal.com";
                        // Configure Bearer token for authorization: organization_api_key
                        config.AccessToken = "YOUR_ORGANIZATION_API_KEY";

                        var apiInstance = new DefaultApi(config);
                        var templateId = "e4d3c2b1-a09f-4f1e-8d7c-6b5a4f3e2d1c";  // string | 
                        var appId = "00000000-0000-0000-0000-000000000000";  // string | 
                        var copyTemplateRequest = new CopyTemplateRequest(); // CopyTemplateRequest | 

                        try
                        {
                            // Copy template to another app
                            TemplateResource result = apiInstance.CopyTemplateToApp(templateId, appId, copyTemplateRequest);
                            Debug.WriteLine(result);
                        }
                        catch (ApiException  e)
                        {
                            Debug.Print("Exception when calling DefaultApi.CopyTemplateToApp: " + e.Message );
                            Debug.Print("Status Code: "+ e.ErrorCode);
                            // e.ErrorMessages flattens any error-envelope shape to an IReadOnlyList<string>;
                            // the raw body remains on e.ErrorContent.
                            Debug.Print("Error Messages: " + string.Join(", ", e.ErrorMessages));
                            Debug.Print("Response Body: " + e.ErrorContent);
                            Debug.Print(e.StackTrace);
                        }
                    }
                }
            }
        - lang: rust
          label: Rust SDK
          source: |-
            use onesignal_rust_api::apis::configuration::Configuration;
            use onesignal_rust_api::apis::default_api;

            use onesignal_rust_api::models;


            #[tokio::main]
            async fn main() {
                let mut configuration = Configuration::new();
                configuration.organization_api_key_token = Some("YOUR_ORGANIZATION_API_KEY".to_string());


                // Realistic values are pulled from the spec's `example:` fields where present.
                let template_id: &str = "e4d3c2b1-a09f-4f1e-8d7c-6b5a4f3e2d1c";
                let app_id: &str = "00000000-0000-0000-0000-000000000000";
                let copy_template_request: models::CopyTemplateRequest = todo!();

                match default_api::copy_template_to_app(&configuration, template_id, app_id, copy_template_request).await {
                    Ok(resp) => println!("{:?}", resp),
                    Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
                        // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
                        // the raw response remains on the ResponseError variant.
                        eprintln!("copy_template_to_app failed: {:?}", e.error_messages());
                    }
                    Err(e) => eprintln!("copy_template_to_app failed: {:?}", e),
                }
            }
components:
  schemas:
    BasicErrorResponse:
      type: object
      properties:
        errors:
          type: array
          items:
            type: string
          description: One or more human-readable error messages.
        success:
          type: boolean
          description: >-
            Present (and `false`) on some endpoints (notifications, templates,
            segments). Not emitted by every endpoint.
        reference:
          type: array
          items:
            type: string
          description: >-
            Documentation URL fragments related to the error. Only emitted by
            the API-key auth error helpers.

````