> ## 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.

# Delete template

> Permanently delete a specific message template from your OneSignal app using its template ID. Templates used in Journeys must be removed from those Journeys before deletion.

## Overview

This endpoint allows you to delete a single template associated with your OneSignal app. Deletion is **immediate and irreversible**.

<Warning>
  If the template is currently used in a Journey, it cannot be deleted until that Journey has been deleted.
</Warning>

***

## How to use this API

Required Parameters

* `template_id` (path param): The OneSignal-generated UUID of the template to delete.
* `app_id` (query param): Your OneSignal App ID.

### Where to Find `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>

***


## OpenAPI

````yaml DELETE /templates/{template_id}?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}?app_id={app_id}:
    delete:
      summary: Delete template
      description: >-
        Permanently delete a specific message template from your OneSignal app
        using its template ID. Templates used in Journeys must be removed from
        those Journeys before deletion.
      operationId: delete-template
      parameters:
        - name: template_id
          in: path
          description: The template ID in UUID v4 format. See [Templates](/docs/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 App's API key found in [Settings > Keys &
            IDs](/docs/en/keys-and-ids).
          required: true
          schema:
            type: string
            default: Key YOUR_APP_API_KEY
      responses:
        '200':
          description: '200'
          content:
            application/json:
              schema:
                type: object
                properties:
                  success:
                    type: boolean
                    example: true
        '400':
          description: '400'
          content:
            application/json:
              schema:
                oneOf:
                  - title: Bad Request (Missing App ID)
                    type: object
                    properties:
                      errors:
                        type: array
                        items:
                          type: string
                          example: >-
                            Request is malformed: Failed to parse app_id from
                            request
                  - title: Bad Request (Template In Use)
                    type: object
                    properties:
                      success:
                        type: boolean
                        example: false
                        default: true
                      errors:
                        type: array
                        items:
                          type: string
                          example: >-
                            Can not delete a template that has journeys using
                            it.
        '404':
          description: '404'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BasicErrorResponse'
              example:
                errors:
                  - template not found
        '429':
          description: '429'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/StructuredErrorResponse'
              example:
                errors:
                  - code: Rate Limit Exceeded
                    title: Example error title
          headers:
            Retry-After:
              description: >-
                Number of seconds to wait before retrying the request. Always
                emitted on 429 responses.
              schema:
                type: integer
                minimum: 0
        '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
      security: []
      x-codeSamples:
        - lang: typescript
          label: Node.js SDK
          source: |-
            import Onesignal from '@onesignal/node-onesignal';

            const configuration = Onesignal.createConfiguration({
                restApiKey: 'YOUR_REST_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";

            try {
              const response = await apiInstance.deleteTemplate(templateId, appId);
              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("deleteTemplate 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" 

                try:
                    # Delete template
                    api_response = api_instance.delete_template(template_id, app_id)
                    pprint(api_response)
                except onesignal.ApiException as e:
                    print("Exception when calling DefaultApi->delete_template: %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: rest_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

            try {
                $result = $apiInstance->deleteTemplate($template_id, $app_id);
                print_r($result);
            } catch (\onesignal\client\ApiException $e) {
                echo 'Exception when calling DefaultApi->deleteTemplate: ', $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->deleteTemplate: ', $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 | 

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

                restAuth := context.WithValue(context.Background(), onesignal.RestApiKey, "YOUR_REST_API_KEY") // App REST API key required for most endpoints

                resp, r, err := apiClient.DefaultApi.DeleteTemplate(restAuth, templateId).AppId(appId).Execute()

                if err != nil {
                    fmt.Fprintf(os.Stderr, "Error when calling `DefaultApi.DeleteTemplate``: %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 `DeleteTemplate`: GenericSuccessBoolResponse
                fmt.Fprintf(os.Stdout, "Response from `DefaultApi.DeleteTemplate`: %v\n", resp)
            }
        - lang: ruby
          label: Ruby SDK
          source: |-
            require 'onesignal'
            # setup authorization
            OneSignal.configure do |config|
              # Configure Bearer authorization: rest_api_key
              config.rest_api_key = 'YOUR_REST_API_KEY'

            end

            api_instance = OneSignal::DefaultApi.new
            template_id = 'e4d3c2b1-a09f-4f1e-8d7c-6b5a4f3e2d1c' # String | 
            app_id = '00000000-0000-0000-0000-000000000000' # String | 

            begin
              # Delete template
              result = api_instance.delete_template(template_id, app_id)
              p result
            rescue OneSignal::ApiError => e
              puts "Error when calling DefaultApi->delete_template: #{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: rest_api_key
                HttpBearerAuth rest_api_key = (HttpBearerAuth) defaultClient.getAuthentication("rest_api_key");
                rest_api_key.setBearerToken("YOUR_REST_API_KEY");

                DefaultApi apiInstance = new DefaultApi(defaultClient);
                String templateId = "e4d3c2b1-a09f-4f1e-8d7c-6b5a4f3e2d1c"; // String | 
                String appId = "00000000-0000-0000-0000-000000000000"; // String | 
                try {
                  GenericSuccessBoolResponse result = apiInstance.deleteTemplate(templateId, appId);
                  System.out.println(result);
                } catch (ApiException e) {
                  System.err.println("Exception when calling DefaultApi#deleteTemplate");
                  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 DeleteTemplateExample
                {
                    public static void Main()
                    {
                        Configuration config = new Configuration();
                        config.BasePath = "https://api.onesignal.com";
                        // Configure Bearer token for authorization: rest_api_key
                        config.AccessToken = "YOUR_REST_API_KEY";

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

                        try
                        {
                            // Delete template
                            GenericSuccessBoolResponse result = apiInstance.DeleteTemplate(templateId, appId);
                            Debug.WriteLine(result);
                        }
                        catch (ApiException  e)
                        {
                            Debug.Print("Exception when calling DefaultApi.DeleteTemplate: " + 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;


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

                match default_api::delete_template(&configuration, template_id, app_id).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!("delete_template failed: {:?}", e.error_messages());
                    }
                    Err(e) => eprintln!("delete_template 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.
    StructuredErrorResponse:
      type: object
      properties:
        errors:
          type: array
          items:
            $ref: '#/components/schemas/StructuredErrorItem'
    StructuredErrorItem:
      type: object
      required:
        - code
        - title
      properties:
        code:
          type: string
          description: >-
            Stable error-code identifier. Use this for programmatic branching in
            your integration.
        title:
          type: string
          description: >-
            Human-readable error message intended for logs and operator-facing
            surfaces.
        meta:
          type: object
          additionalProperties: true
          description: >-
            Optional structured details about this specific error. The shape of
            `meta` varies by `code` — for example, the create-user `Conflict`
            code returns `{ conflicting_aliases: { [alias_label]: alias_id } }`.

````