Sorry, as soon as I posted this I figured it out!
This is the code I used…
<?php
$queried_object = get_queried_object();
$taxonomy = $queried_object->taxonomy;
$term_id = $queried_object->term_id;
the_field(‘previous_issue_link’, $taxonomy . ‘_’ . $term_id);
?>
Incase it helps anyone else in the future 🙂
Thanks
Aaron
