Create Email Template API

The Create Email Template API can be used to create an email template in MoEngage. This API helps you upload templates created outside the MoEngage ecosystem to MoEngage and use them for campaign creation. The uploaded templates can be edited in the Froala editor (custom HTML editor) on the MoEngage Dashboard.

API Endpoint

POST https://api-0X.moengage.com/v1.0/custom-templates/email

Each customer is hosted on a different data center; you can find your data center number (value of X) by checking the data center and API endpoint mapping page.

Authentication

The API request will be authenticated through Basic Authentication. Basic Authentication sends a Base64-encoded string containing your username and password with every API request. It encodes a 'username:password' string in Base64 and appends the encoded string with 'Basic '. This string is included in the authorization header as shown below:

{"Authorization":"Basic bmF2ZWVua3VtYXI6bW9lbmdhZ2U="}

The username and password details can be obtained from the MoEngage Dashboard. We've revamped the settings UI in the Dashboard. If you're using the API for the first time, follow these steps for the revamped and old UIs:

Revamped UI

Navigate to Settings -> Account -> APIs.
Click the Copy icon in the Campaign report/Business events/Custom templates tile in the API Keys section to copy the API Key.
Use the App ID as the username and the Push API Key as the password to generate the authentication header.

Old UI

Navigate to Settings -> APIs -> TRANSACTION PUSH/REPORT Settings.
Click on the Click here to show APP Secret link to view the API SECRET.
Use the APP ID as the username and the API SECRET as the password to generate the authentication header.

Request Headers

Key	Required	Sample Values	Description
Content-Type	Required	{"Content-Type": "application/json"}	Set the Content-Type header to application/json.
Authorization	Required	{"Authorization": "Basic bmF2ZWVua3VtYXI6bW9lbmdhZ2U=="}	This authentication parameter, used for access control, must be passed along with the request. To generate the authentication header, refer to Authentication.

Request Body

Key	Required	Values	Description
basic_details	Required	JSON Object	This field contains the email content. This is where you define the email template being created. For more information, refer to Basic Details.
meta_info	Required	JSON Object	This field contains information about the template being created, such as the name, version, and ID of the template and the creator's details. For more information, refer to Meta Info.

Basic Details

The basic_details JSON object contains the following information:

Key	Required	Values	Description
email_content	Required	String	This field contains the title of the message.
subject	Required	String	This field contains the subject of the email campaign. Example: "End of Season Sale!"
attachments	Optional	Array of Strings	This field contains the attachments to be included in the email. Example: "attachments": [ "https://app-cdn.moengage.com/assets/LogoThumbnail.jpg" ] Note: Only URLs can be added as part of Email attachments. A maximum of ten attachments are allowed. The URL should start with https and end with a valid extension. The following extensions are not allowed: .dmg, .exe, .xls, .ddl, .class, .obj, .int, .gnt, .o, .so, .lbr, and .net Individual attachments should be less than 6 MB, and the total size of the attachments should be less than 20 MB.
thumbnail_url	Required	String	This field contains the image URL used to generate a preview in the Imported API Templates section on the MoEngage dashboard.
sender_name	Required	String	This field contains the name that is displayed in the inboxes of your recipients. Sender names are one of the first things people see when you send them an email. Example: "sender_name": "Your Brand Name"
preview_text	Optional	String	This field contains the preview text, the text that appears below the subject line in the inbox. Example: "preview_text": "Let Your Summer Look Shine"

Meta Info

The meta_info JSON object contains the following information:

Key	Required	Values	Description
template_id	Required	String	This field contains the ID for the template and is unique. This ID should be generated by you and will be used for updating or retrieving the template using the template APIs.
template_name	Required	String	This field contains the name of the template. This value should be generated by you and would be used for identifying the template.
template_version	Required	String	This field contains the version of the template and is unique. This value should be generated by you and would be used for tracking the template's version.
created_by	Required	String	This field contains details about who created the template. This value should be generated by you. For example, you can pass the email id of the user creating the template here.
locale	Optional	String	This field contains the locale to be associated with the template. These are the locales available in the MoEngage Dashboard at Settings > Advanced settings > Locales.
variation	Optional	Integer	This field contains the variation of the template. You can add a maximum of five variations to each template.
group_id	Optional	String	This field contains the group ID of the template. Parent template: A parent template is the "default" template with which you can associate child templates. You need not pass a Group ID for a parent template. The "external_template_id" generated for the parent template acts as its group ID. Child template: Pass the Group ID of the parent (default) template with which you want to associate the child template.

Response

Key

Data Type

Description

external_template_id

String

This field contains the unique template id corresponding to a successful template creation request and needs to be stored by you. This template id would be used for searching a specific template and updating it.

For a parent (default) template, the generated "external_template_id" acts as its group ID.

error

JSON Object

This field contains the reason for the request's failure.

Structure:

"error": {

"code": "<error_code>",

"message": "<error_message>" ,

"details": [],

"request_id": "<unique identifier for the request>

}

The error object contains the following fields:

code - This field contains the error code that provides a brief explanation of the error and is a String. For example, 400 - Bad Request, 401- Authentication required, and so on. This field is present in the response only in the case of errors.
message - This field describes why the request has failed and is a String. For example, in the case of a duplicate request (400- Bad Request), the following message will be present: 'Duplicate - template_id and template_version'.
details - This is a List of the error details objects. Each object contains the following information:

{

"code": "<Descriptive Error Code>",

"target": "<Denotes the field causing the issue or a brief description of the error message in some cases >",

"message": "<Descriptive Error Message>"

}

request_id - This field contains the unique id pertaining to the request.

For example, in the case of a 400 request where the request is trying to create a template that is already present, the following error object is returned.

{
"error": {
"code": "400 Bad Request",
"message": "Duplicate - template_id and template_version",
"details": [
{
"code": "InvalidValue",
"target": "Duplicate - template_id and template_version",
"message": "template_id:<template_id> template_version:<template_version> is already present."
}
],
"request_id": "cLCcgLQj"
}

Response Codes

Status Code	Request State	Description
200	Success	This response is returned when the request is processed successfully.
400	Bad Request	This response is returned when the required parameters are missing from the request, or when the provided parameters are invalid, or when a template already exists with the same version, name, or id.
401	Authorization Failure	This response is returned when the authorization parameters are missing in the HTTP Auth Header.
415	Unsupported File Type	This response is returned when the header Content-Type is not provided/is not supported.
429	Rate Limit Breach	This response is returned when the number of requests per minute has exceeded the rate limit, or the number of templates has exceeded the allowed quota per channel.
5xx	Internal Server Error	This response is returned when the system runs into an unexpected error.

Rate Limit

The rate limit is 100 RPM. You can upload a maximum of 100 templates per channel.

Sample cURL Request

curl --location 'https://api-0X.moengage.com/v1.0/custom-templates/email' \
--header 'Content-Type: application/json' \
--header 'Authorization: Basic bmF2ZWVua3VtYXI6bW9lbmdhZ2U==' \
--data-raw '{
     "basic_details": {
         "email_content": "<!DOCTYPE html><html><head><title>Sample Webpage</title></head><body><h1>Welcome to My Sample Webpage 1</h1><p>This is a small example of an HTML webpage.</p><p>Below is an unordered list:</p><ul><li>Item 1</li><li>Item 2</li><li>Item 3</li></ul><p>Here'\''s an image:</p><img src=\"https://example.com/sample-image.jpg\" alt=\"Sample Image\"><p>Visit our <a href=\"https://www.example.com\">website</a> for more information.</p></body></html>",
         "subject": "Hi, Test subject 1",
         "attachments": [],
         "thumbnail_url": "https://img.freepik.com/free-vector/bright-yellow-sunflower-design-decorations_1308-130330.jpg",
         "sender_name": "test sender 1"
     },
     "meta_info": {
         "template_id": "0192837",
         "template_name": "test_template_1",
         "template_version": "0",
         "created_by": "john.doe@example.com"
     }
 }'

Sample Response

Sample Response for a successful request
{
  "external_template_id": "d05a44f0-a7cf-471a-bcb6-63054800a367"
}

Sample Response for validation failure due to invalid request data
{
    "error": {
        "code": "400 Bad Request",
        "message": "Validation failed because of invalid request data",
        "details": [
            {
                "code": "MissingValue",
                "target": "template_id",
                "message": "template_id value is too short"
            }
        ],
        "request_id": "LMwPhRMB"
    }
}
Sample Response for when the Request Body is empty
{
    "code": "400 Bad Request",
    "target": "template_name",
    "message": "request_body is missing." 
}
Sample Response for when the Template Name is empty in the Request
{
    "error": {
        "code": "400 Bad Request",
        "message": "Validation failed because of invalid request data",
        "details": [
            {
                "code": "MissingValue",
                "target": "template_name",
                "message": "template_name value is required but value is passed empty."
            }
        ],
        "request_id": "jUxStmFn"
    }
}
Sample Response for Invalida Data Types in the Request Fields
{
   "error": {
       "code": "400 Bad Request",
       "message": "Validation failed because of invalid request data",
       "details": [
           {
               "code": "InvalidValue",
               "target": "email_content",
               "message": "email content is invalid."
           }
       ],
       "request_id": "REQCNzcE"
   }
}
Sample Response for Missing Mandatory Fields in the Request
{
   "error": {
       "code": "400 Bad Request",
       "message": "Validation failed because of invalid request data",
       "details": [
           {
               "code": "MissingValue",
               "target": "template_name",
               "message": "template_name value is required but value is passed empty."
           }
       ],
       "request_id": "eYXFWciv"
   }
}
Sample Response for Invalid Extensions in Attachments in the Request
{
   "error": {
       "code": "400 Bad Request",
       "message": "Validation failed because of invalid request data",
       "details": [
           {
               "code": "InvalidValue",
               "target": "attachments",
               "message": "Email attachments should have valid extensions"
           }
       ],
       "request_id": "eYXFWciv"
   }
}
Sample Response for When Individual Attachments Exceed the Allowed Limits in the Request
{
   "error": {
       "code": "400 Bad Request",
       "message": "Validation failed because of invalid request data",
       "details": [
           {
               "code": "InvalidValue",
               "target": "attachments",
               "message": "Email attachments should be valid one with size less than 6 MB."
           }
       ],
       "request_id": "eYXFWciv"
   }
}
Sample Response for Duplicate Request
{
  "error": {
    "code": "400 Bad Request",
    "message": "Duplicate - template_id and template_version",
    "details": [
      {
        "code": "InvalidValue",
        "target": "Duplicate - template_id and template_version",
        "message": "template_id:EndOfSeasonSale template_version:10 is already present."
      }
    ],
    "request_id": "cLCcgLQj"
}
Sample Response for Template Limit Breach
{
   "error": {
       "code": "400 Bad Request",
       "message": "Maximum Template limit exceeded",
       "details": [
           {
               "code": "NotSupported",
               "target": "Maximum Template limit exceeded",
               "message": "You have already created maximum allowed template allowed for client"
           }
       ],
       "request_id": "eLeZXIlW"
   }
}

Sample Response for Authentication/Authorization failure
{
   "title": "Authentication required",
   "description": "MOE-APPKEY missing in Authentication Header"
}

Sample Response for Unsupported Media Type
{
   "title": "Unsupported media type",
   "description": "Content type is not supported"
}

Sample Response for Rate Limit Breach
{
    "response_id": "OUUkHvcn",
    "type": "custom_template",
    "error": {
        "code": "Too Many Requests",
        "message": "API rate limit breached. Current limit: n/m mins"
    }
}
Sample Response for Template Limit Breach
{
   "error": {
       "code": "400 Bad Request",
       "message": "Maximum Template limit exceeded",
       "details": [
           {
               "code": "NotSupported",
               "target": "Maximum Template limit exceeded",
               "message": "You have already created maximum allowed template allowed for client"
           }
       ],
       "request_id": "eLeZXIlW"
   }
}

Sample Response for server side errors
{ 
    "title": "Internal Server Error",
    "message": "An unexpected error was encountered while processing this request. Please contact MoEngage Team"
}

Postman Collections

We have made it easy for you to test the APIs. Click here to view it in Postman.

FAQs

arrow_drop_down How do I access templates created using this API on the MoEngage Dashboard??

You can access templates created using the Create Email Template API in the Imported API Templates tab in the second step of campaign creation in the MoEngage Dashboard, as illustrated in the image below.

arrow_drop_down Can I create multiple templates with the same name?

Yes, you can create multiple templates with the same name, provided they have different versions.