Meta Box

Hello,

I have created this snippet (I don't want to change my function.php) with code snippet:

my metabox is fields-for-agent

add_action( 'rwmb_fields-for-agent_after_save_post', 'update_post_title' );

function update_post_title( $post_id ) {
    // Get the field value
    $t1 = rwmb_meta( 'first_name', '', $post_id );
    $t2 = rwmb_meta( 'last_name', '', $post_id );

    // Get the post title
    $my_post_title = get_the_title( $post_id );
    
    // Preprare update post
    $my_post = array(
        'ID' => $post_id,
        'post_title' => $t1 . ' ' . $t2,
        'post_name' => $t1 . '_' . $t2,
    );

    wp_update_post( $my_post );
}

But it does not work and I don't find why.

Maybe because the field "post_title" is in the metabox?

Thank you. It's what I was looking for.

OK. I did it.

By the way, I think there is a conflict on the css with elementor.

If I use elementor on my page to display the dashboard, it's not well displayed. If I don't use elementor, it's well displayed.

Have a look at the screenshot:
Page edited with elementor: https://prnt.sc/11as6mf
Page edited without elementor: https://prnt.sc/11as40d

Honnestly, as A build my custom fields with the BM builder, I don't see how to manage the code.
Can I add the code to the function.php your provided and keep the BM Builder?
(I don't want to put everything in the function.php. I want to keep the flexibility/ease of use of the MB builder).

(sorry to be rooky in that domain).

Thank you, it would be great.
Meanwhile, is there a way to hide it with custom css?

Finally it works.
In fact in your documentation, you say several times that if we don't specify the "id", the default profile is displayed, but it's not.

1. here: https://metabox.io/create-wordpress-custom-user-profile-page-in-frontend/

"

Go to the Page menu > Add New to create a new page and name it is Register Page. In the content section of the page, insert this shortcode:

mb_user_profile_register label_submit="Register" confirmation="Your account has been created successfully!"

id Meta Box ID(s), separated by commas. All fields from meta boxes will be included in the registration form. If not specified, it shows the default registration form.

1. To change the password in frontend, it's the same.

SHOW THE PASSWORD FIELDS
The Password field is created automatically by MB User Profile with ID is rwmb-user-info. Just insert it to the above shortcode.

However, as the user’s routine and my opinion, we should make an individual page for these fields. It is where users can change the password as well.

So, I create a new page named Change Password and use the same shortcode with the User Profile page.

mb_user_profile_info id="rwmb-user-info" label_submit="Save Changes" confirmation="Your password was changed successfully!"

It does not work. We have to create the metabox.

I did.
Have a look at my test page: https://prnt.sc/1192him