Exclude some membership level purchases from PMPro Affiliate tracking

my_pmpro_affiliates_tracking_exclude_levels.php

<?php
/**
 * Exclude some membership level purchases from PMPro Affiliate tracking
 * 
 * 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_affiliates_tracking_exclude_levels( $order ){

	if( ! function_exists( 'pmpro_affiliates_pmpro_added_order' ) ) {
		return;
	}

	// checkout level IDs to exclude from affiliate tracking
	$exclude_levels = array( 1, 2 ); 

	$pmpro_level = $order->getMembershipLevel();
	
	if ( in_array( $pmpro_level->id, $exclude_levels ) ) {
		remove_action( 'pmpro_added_order', 'pmpro_affiliates_pmpro_added_order' );
		remove_action( 'pmpro_after_checkout', 'pmpro_affiliates_no_order_checkout' );
	}
		
}
add_action( 'pmpro_added_order', 'my_pmpro_affiliates_tracking_exclude_levels', 5 );