WooCommerce Subscriptions Failed Payment Retry Rules for Testing: Replace the default WooCommerce Subscriptions failed payment retry rules with rules that run every few minutes (not days) and always send dunning emails to help with testing.

wcs-test-retry-rules.php

<?php
/**
 * Plugin Name: WooCommerce Subscriptions Failed Payment Retry Rules for Testing
 * Plugin URI:
 * Description: Replace the default WooCommerce Subscriptions failed payment retry rules with rules that run every few minutes (not days) and always send dunning emails to help with testing.
 * Author: Prospress Inc.
 * Author URI: http://prospress.com/
 * Version: 1.0
 *
 * Copyright 2016 Prospress, Inc.  (email : freedoms@prospress.com)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * @package		WooCommerce Subscriptions
 * @author		Prospress Inc.
 * @since		1.0
 */

/**
 * Apply our own set of retry rules.
 */
function wcsfptrr_retry_rules( $default_retry_rules_array ) {
	return array(
		array(
			'retry_after_interval'            =>  60,
			'email_template_customer'         => 'WCS_Email_Customer_Payment_Retry',
			'email_template_admin'            => 'WCS_Email_Payment_Retry',
			'status_to_apply_to_order'        => 'pending',
			'status_to_apply_to_subscription' => 'on-hold',
		),
		array(
			'retry_after_interval'            => 120,
			'email_template_customer'         => 'WCS_Email_Customer_Payment_Retry',
			'email_template_admin'            => 'WCS_Email_Payment_Retry',
			'status_to_apply_to_order'        => 'pending',
			'status_to_apply_to_subscription' => 'on-hold',
		),
		array(
			'retry_after_interval'            => 180,
			'email_template_customer'         => 'WCS_Email_Customer_Payment_Retry',
			'email_template_admin'            => 'WCS_Email_Payment_Retry',
			'status_to_apply_to_order'        => 'pending',
			'status_to_apply_to_subscription' => 'on-hold',
		),
		array(
			'retry_after_interval'            => 240,
			'email_template_customer'         => 'WCS_Email_Customer_Payment_Retry',
			'email_template_admin'            => 'WCS_Email_Payment_Retry',
			'status_to_apply_to_order'        => 'pending',
			'status_to_apply_to_subscription' => 'on-hold',
		),
		array(
			'retry_after_interval'            => 300,
			'email_template_customer'         => 'WCS_Email_Customer_Payment_Retry',
			'email_template_admin'            => 'WCS_Email_Payment_Retry',
			'status_to_apply_to_order'        => 'pending',
			'status_to_apply_to_subscription' => 'on-hold',
		),
	);
}
add_filter( 'wcs_default_retry_rules', 'wcsfptrr_retry_rules' );

@frnkoc the example in the doc you referenced is incorrect. The correct filter hook is wcs_default_retry_rules. We'll get that fixed up.

Just to clarify your code snippet should look like this:

function pf_custom_retry_rules( $default_retry_class ) {
	return array(
		array(
			'retry_after_interval' => DAY_IN_SECONDS / 2, // how long to wait before retrying
			'email_template_customer' => '', // don't bother the customer yet
			'email_template_admin' => 'WCS_Email_Payment_Retry',
			'status_to_apply_to_order' => 'pending',
			'status_to_apply_to_subscription' => 'on-hold',
		),
		array(
			'retry_after_interval' => DAY_IN_SECONDS / 2,
			'email_template_customer' => 'WCS_Email_Customer_Payment_Retry',
			'email_template_admin' => 'WCS_Email_Payment_Retry',
			'status_to_apply_to_order' => 'pending',
			'status_to_apply_to_subscription' => 'on-hold',
		),
	);
}
add_filter( 'wcs_default_retry_rules', 'pf_custom_retry_rules' );

the "$default_retry_class" has to be included? I dont see it in your code.

In your case you don't necessarily need to include the parameter here, you only need to include it if you want to change parts without needing to completely rewrite the entire array of data.

Hello

Thank you for this code. I am using Stripe and i want to exclude SEPA from the retry process. Only apply the retry process to orders with Bank card?

Do you think a function in my functions.php can override native plugin behaviour?

Thank you