Reply To:

• aaron91brimacombe

• March 21, 2021 at 11:19 am

I wonder if somebody can help with something I cannot work out.
I basically have a front end form to create users using ACF fields. I also have a field which I am using ‘Update_field’ for.
This all works for creating the user, however when I update this same custom post I get a critical error, caused by the ‘Update_field’ element specifically.
The critical error is:
Fatal error: Uncaught Error: Object of class WP_Error could not be converted to string in

And here is my code:

function create_user_frontend( $post_id ) {
    $first_name = get_field('first_name', $post_id);
    $last_name = get_field('last_name', $post_id);
 $username = get_field('email', $post_id);
 $password = get_field('password', $post_id);
 $incident = get_field('related_incident', $post_id, false);
 $role = get_field ('role', $post_id);
 $userdata= array (
 'user_login' => $username,
 'user_email' => $username,
 'first_name' => $first_name,
 'last_name' => $last_name,
 'user_pass' => $password,
 'role' => $role,
 );
 $user_id = wp_insert_user($userdata);
 update_field('field_602ce62b11720', $incident, 'user_'.$user_id);
 }
add_action('acf/save_post', 'create_user_frontend', 20);

This solved my question!