If you already have a pre-built HTML template, you have the ability to enter this in ecomdash.
1. Navigate to Administration -> Listing Templates
2. Click into your template.
3. You will see a checkbox for 'Use Advanced HTML Editor?'.
Check the checkbox for 'Use Advanced HTML Editor?' to enter the code provided to you for your pre-built template.
If you would like to create a brand new template with HTML code, do not check the checkbox to use the advance HTML editor which gives you the ability to create your own code.