Not really. the “venue” is not a post_id for the custom post. The post_id will be a numeric value. From your CPT post edit screen, the URL will be something like this: http://your-domain.com/wp-admin/post.php?post=2&action=edit. To get the post_id, look at the post=2 section of the URL. The post_id will be the number after post=. Like in the above example, the $post_id will be 2
Welcome to the Advanced Custom Fields community forum.
Browse through ideas, snippets of code, questions and answers between fellow ACF users