I need to change the code of a transactional E-Mail template.
Where can I find them in the magento project so I can change them?
All transactional email templates are stored in the
email
directory of Magento_Sales module. If you have installed Magento through composer, then below is the directory to look for.
vendor/magento/module-sales/view/frontend/email
Here is the link of the path
You can simply copy the file and paste it in your theme directory to include all your customization.