Alias for Salesforce Marketing Cloud turns links in emails into links that are unique to each subscriber.
When editing a button within an email or landing page:
A user can define the value that they want from the alias attribute if they want an alias attribute
The alias attribute is optional and does not affect the default behavior of the button element
The alias attribute accepts alphanumeric characters, underscores and hyphens only
The alias attribute has a max length of 50 characters
It is possible to clear or unset the alias attribute
When exporting the HTML
The alias attribute is set in the button HTML and matched the value set in the button attribute
If you would like this enabled, reach out to your CSM or Support.