How to Upload an HTML Email Template

This article covers creating, managing, and troubleshooting HTML email templates in the Braze dashboard.

Email messages are great for delivering content to the user on their terms. They are also wonderful tools to re-engage users who may have even uninstalled your app. The Braze dashboard has an email template editor that allows you to create custom-tailored, eye-catching emails and save them for later use in campaigns. You can also create an Email Template using our editor.

Uploading Your Template

Step 1: Navigate to the Email Template Editor

In the left navigation, click Templates & Media, under the Engagement section. This will open up the Email Template Gallery.

Step 2: Open the Uploader

Select From File in the Start from a Basic HTML Template section.

Step 3: Upload your Template

Navigate to and upload your template from your computer.

HTML Uploader

Upload Requirements:

Within a single ZIP file, you should limit your upload to:

  • A single HTML file (the body of your email)
  • A folder of images that are referenced in the HTML file
  • Less than 50 image files

Generally, the uploaded file must be:

  • Under 5 MB
  • Zipped in a single file

Solve Upload Email Template Errors

There are several email error messages you can receive when uploading an HTML file for email. You will receive a specific error message describing each of these. Here are a few samples with their recommended fixes:

Error Fix
.zip over 5MB Reduce your file size and try uploading again.
.zip corrupt Inspect your file and try uploading again.
Missing HTML Add HTML file to your ZIP file and try uploading again.
Multiple HTML Remove one of the HTML files and try uploading again.
Images over 5MB Reduce the number of images and try uploading again.
Extra Images You may have additional images in your file that are not referenced in your HTML file. This will not cause a fail error, but the extra images will be discarded. If those images were supposed to be referenced in the HTML file, please check its contents, correct any errors, and try uploading again.
Missing Images If there are images referenced in your HTML file, but those images are not included in the image folder of the .zip file, you will receive a file error. Inspect your file and correct any errors (like misspellings), or add the missing images to your .zip file and try uploading again.

Step 4: Finish and Save Your Template

Be sure to save your template by clicking Save Template in the bottom right corner of the editor. You’re now ready to use this template in any campaign or Canvas you choose.

Using Your Templates in API Campaigns

To use your email for an API campaign, you need an email_template_id, which can be found at the bottom of any email template created in Braze.

Save Template

Managing Email Templates

You can duplicate and archive email templates! Learn more about creating and managing templates and creative content in Templates & Media.


For answers to frequently asked questions about email templates, check out our Email and Link Templates FAQs page.

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