We created a custom order status for WooCommerce and built business automation around it.
A custom WooCommerce order status of Arrived is used to indicate when a shipment is delivered.
Shipstation saves the tracking number via the REST API. In turn, we send the order number and tracking number to the Aftership API.
When the shipment is delivered, Aftership sends a webhook notification to WordPress and we mark the order as Arrived, adding an order note with the delivery information.
This in turn triggers email automation to reach out to the customer to further engage them after they have received their order.