Hi @pmflav
You have to use update_field(...) method to populate the ACF fields.
Hmm…. May be you could try this:
$nickname = $data[‘data’][$account_id][“nickname”];
$field_key = '<field_key>';
$post_id = <post_id>;
update_field($field_key, $nickname, $post_id);
Remember to replace the $field_key and $post_id with the actual field_key and post_id respectively.
Check out the documentation of update_field(…) for more information: http://www.advancedcustomfields.com/resources/update_field/
