Hide the confirm email and confirm password fields from the Paid Memberships Pro checkout page for a specific level.

hide-confirm-email-password.php

<?php
/*
 * Don't show confirm password or email fields on the checkout page,
 * but only for the specified level.
 *
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress repository.
 * Read this companion article for step-by-step directions on either method.
 * https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */
function my_pmpro_hide_confirm_fields_for_level_checkout() {
	// Get the level currently being checked out.
	$level = pmpro_getLevelAtCheckout();

	// Only apply if the level ID is 1.
	if ( ! empty( $level ) && (int) $level->id === 1 ) {
		add_filter( 'pmpro_checkout_confirm_password', '__return_false' );
		add_filter( 'pmpro_checkout_confirm_email', '__return_false' );
	}
}
add_action( 'pmpro_checkout_before_form', 'my_pmpro_hide_confirm_fields_for_level_checkout' );