I use plugin UserPress for WordPress in my site with Advanced Custom Fields. I don't understand how i can insert in front-end wiki's forms Custom fields for registered users.
The docs for UserPress is very poor.
Thanks.
Here's a link which explain how to add Acf in front end form : http://www.advancedcustomfields.com/resources/create-a-front-end-form/
Make sure that you used the good version of tutorial acf_form ^^