Prevent duplicate "Your access will expire on [DATE]" notification in email if both Auto Renewal Checkbox and Cancel on Next Payment Date Add On's are active.

remove-pmproarc-email-filter-if-pmproconpd-exists.php

<?php
/**
 * This recipe removes the cancel email filter for Auto Renewal Checkbox
 * if Cancel on Next Payment Date Add On is active to prevent duplication
 * of the expiration notice "Your access will expire on [DATE]" in the email.
 *
 * 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 remove_pmproarc_email_filter_for_cancel_email() {
	if ( function_exists( 'pmproconpd_pmpro_before_change_membership_level' ) ) {
		remove_filter( 'pmpro_email_body', 'pmproarc_pmpro_email_body' );
	}
}
add_action( 'init', 'remove_pmproarc_email_filter_for_cancel_email' );