Meta Box

Email field is empty.
but if I want only to edit a single meta box field, why I must insert my password?

https://www.dropbox.com/s/nfvw9ykq5an1jv1/edit.png

If I insert an email that was already used by other user, no error message was displayed or returned

I solved by using user_register action

add_action( 'user_register', 'test');

function test( $user_id ) {

 add_user_meta( $user_id, 'user_field', 'field_value' );

}

#2 the correct attribute is user_id

however the meta box is correctly populate, but email and passwords fields are empty.
If I insert new values for email and password in these empty fields the values are not saved

Hi Anh,
now it's works.

Another question:
if I would to customize only username e password, but insert user_email field in form, I use

add_filter( 'rwmb_profile_register_fields', 'addfield', 10, 1);
function addfield($fields){
    $fields = array(
            array(
                'type' => 'email',
                'name' => 'Email',
                'id'   => 'user_email',
                'required' => 1
            ));
return $fields;
}

to display user_email with my form

This hook works but not save user_email value in user account

I've used this rwmb_profile_insert_user_data

add_filter( 'rwmb_profile_insert_user_data', function ( $data, $config ) {
    // User strpos because the $config also contains default register form.
    if ( false === strpos( $config['id'], 'user-account' ) ) {
        return $data;
    }
    // Custom data for user.
    $data = [
        'user_login' => 'my_user3',
        'user_pass'  => 'my_user_pass',
    ];
    return $data;
}, 10, 2 );

Thanks for update, but...

1. always show error notify "Your username already exists."

2. after submit form --> Fatal error: Uncaught Error: Call to undefined function info() in /home/xxxxxxxx/wp-content/plugins/mb-user-profile/inc/class-mb-user-profile-user.php:105 Stack trace: #0 /home/xxxxxxxx/wp-content/plugins/mb-user-profile/inc/class-mb-user-profile-user.php(57): MB_User_Profile_User->create() #1 /home/xxxxxxxx/wp-content/plugins/mb-user-profile/inc/forms/class-mb-user-profile-form.php(110): MB_User_Profile_User->save() #2 /home/xxxxxxxx/wp-content/plugins/mb-user-profile/inc/shortcodes/class-mb-user-profile-shortcode-register.php(43): MB_User_Profile_Form->process() #3 /home/xxxxxxxx/wp-includes/class-wp-hook.php(286): MB_User_Profile_Shortcode_Register->process('') #4 /home/xxxxxxxx/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array) #5 /home/xxxxxxxx/wp-includes/plugin.php(453): WP_Hook->do_action(Array) #6 /home/xxxxxxxx/wp-includes/template-loader.php(12): do in /home/xxxxxxxx/wp-content/plugins/mb-user-profile/inc/class-mb-user-profile-user.php on line 105

Hi,
It seems that the problem was resolved
thanks

Hi,
I’ve do several test.
when I have a cpt with metabox with custom table I’ve seen this behavior:
If I have other cpt without metabox there’s nothing happened when it is Saved.
But if another cpt has only one metabox, the custom table was populate with an empty row.
when I have more metabox for other cpt nothing happened when it is saved.
Is there some bug?