Update details for a specific email template

Use the following endpoint to update details for a specific email template on this platform. Only include elements that need to be updated.

Endpoint	Purpose
`PATCH {URI}/emailTemplates/{etid}`	Update details for a specific email template on this platform.

The following table shows parameters for PATCH {URI}/emailTemplates/{etid}.

Path Params	Data type	Description
etid	string	(Required) Email Template Identifier (ETID) is returned in the email template response payload. (Path Parameter).

Body Params	Data type	Description
name	string	(Optional) A unique name to give the template.
fromName	string	(Optional) The name that will appear in the From line of the email.
subject	string	(Optional) The Subject of the email.
headerImage	string	(Optional) A Base64 encoded string of an image that will show as the header of the email.
headerImageAltText	string	(Optional) The Alt Text for the Header Image in the email.
accentColor	string	(Optional) A Hex color value, six hexadecimal digits preceded by a pound sign, used as an accent in the email.
messageBody	string	(Optional) The message body for the email. This is often used to let the recipient know why they have received the reward. The string may have up to 1024 characters.
closing	string	(Optional) After the reward credential, a space to close the message to the recipient.
customerServiceMessage	string	(Optional) If left null, Tango's Customer Support contact information will be included. Otherwise contact information for your customer support, if you are taking responsibility for providing first tier customer support of your recipients.
accessControl	array of objects	(Optional) Which Customers and/or Accounts should have access to this template.
-type	string	The type of access being specified: PLATFORM, CUSTOMER or ACCOUNT.
-identifier	string	Leave this field blank if the type is PLATFORM. Enter either the the customerIdentifier or the accountIdentifier if the type is CUSTOMER OR ACCOUNT, respectively.
defaults	array of objects	(Optional) If you want this template to be used at order time for the given Platform, Customer or Account when the Email Template Identifier (ETID) is not provided with the order.
-type	string	The type of default being specified: PLATFORM, CUSTOMER or ACCOUNT.
-identifier	string	Leave this field blank if the type is PLATFORM. Enter either the the customerIdentifier or the accountIdentifier if the type is CUSTOMER OR ACCOUNT, respectively.

See the example payload below:

{
  "etid": "string",
  "name": "string",
  "fromName": "string",
  "subject": "string",
  "headerImage": "string",
  "headerImageAltText": "string",
  "accentColor": "string",
  "messageBody": "string",
  "closing": "string",
  "customerServiceMessage": "string",
  "accessControls": [
    {
      "type": "PLATFORM",
      "identifier": "string"
    }
  ],
  "defaults": [
    {
      "type": "PLATFORM",
      "identifier": "string"
    }
  ]
}

Here's an example payload for when you receive an error:

{
  "timestamp": "2025-02-21T23:23:13.930Z",
  "requestId": "string",
  "path": "string",
  "httpCode": 0,
  "httpPhrase": "string",
  "i18nKey": "string",
  "message": "The error message will show here for error codes ",
  "errors": [
    {}
  ]
}

The possible response codes for this endpoint are:

200 Ok
400 Bad Request
401 Unauthorized
403 Forbidden
404 Not Found
409 Conflict, Duplicate Exists