Often times variables are used in emails and guided landing pages for marketers to quickly and easily change a link URL in a CTA button, however these links cannot be made dynamic when used with a variable.
The variable needs to be removed and replaced with an editable section or a rich text element. Once this is done the editable section or rich text element can be made dynamic. This will require some prior knowledge of HTML as the code of the asset itself will need to be changed. The links below will guide you through the syntax that needs to be used to modify your HTML.