Additional Registration Custom Fields – password update error

Hi Craig,
The custom registration fields are listed under ‘Additional Info’ tab. Checkout the image – https://imgur.com/TLOAHmP
The entire Profile page, with all the tabs (Personal, Address, Social,…), is wrapped under a single form element. So unless, all the mandatory fields are supplied it will not gets submitted.
Thanks!

Hello Craig,
Please share the snapshot of Additional Info tab, for both types of vendors(i.e. vendor registered before those custom fields introduced and one recent vendor)
Thanks

Hi,
Try using the following snippet-

add_action( 'after_wcfm_marketplace_settings', 'focusFailedValidationTab' );
add_action( 'after_wcfm_wcvendors_profile', 'focusFailedValidationTab' );

function focusFailedValidationTab() {
    ?>
    <script>
        jQuery( document ).ready( function ( $ ) {
          var validationTimer;
          function afterFormValidation( e, form ) {
            if ( isValidationFailed ) {
              clearTimeout( validationTimer );
              validationTimer = setTimeout( function () {
                $tabHeader = $( form ).find( '.wcfm_validation_failed:first' ).closest( '.wcfm-container' ).prev( '.page_collapsible' );
                if ( $tabHeader.length ) {
                  $tabHeader.trigger( 'click' );
                }
              }, 0 );
            }
          }

          function isValidationFailed( form ) {
            return $( form ).find( '.wcfm-message.wcfm-error' ).length;
          }

          $( document.body ).on( 'wcfm_form_validate', afterFormValidation );
        } );
    </script>
    <?php
}

Add this code to your child theme’s functions.php
In case you do not have child theme then add code using this plugin – https://wordpress.org/plugins/code-snippets/
Let me know how this goes.
Thanks!