Updating and Synchronizing Woocommerce Subscriptions to Custom Date

There is a function exposed by the WC_Subscription object called update_dates() which takes an array of date keys matching the values used in the Subscriptions list dashboard (and other areas).

The function signature is WC_Subscription::update_dates( $dates, $timezone ). I believe an object must be instantiated; I don't think this method can be called statically. Subscriptions function reference here.

The documented parameters (as keys to be passed in the $dates array) are:

1. start
2. trial_end
3. next_payment
4. last_payment
5. end

The array itself is required, but I don't believe each individual key needs to be populated with a value. For instance, default orders generated by the Subscriptions plugin often have no trial_end or end dates (unless separately configured that way).

Using an action hook such as woocommerce_checkout_subscription_created (Subscriptions action reference) you could use the $subscription argument, which is an instance of WC_Subscription, and do something like:

function push_subscriptions_to_next_week($subscription, $order, $recurring_cart) {    // The new date calculation of +7 days is just an example    $new_dates = array(        'start' => date('Y-m-d H:i:s', strtotime('+7 days', time())),        'next_payment' => date('Y-m-d H:i:s', strtotime('+7 days', time()))    );    $subscription->update_dates($new_dates, 'site');}add_action(woocommerce_checkout_subscription_created, push_subscriptions_to_next_week, 10, 3);

The dates are required to be in a MySQL date/time format (Y-m-d H:i:s) so I've updated the code example to reflect that.