The integration allows you to send Stamped review request emails once the shipment status is updated to Delivered in ParcelPanel.
Here is the instruction
Go to ParcelPanel admin → Settings → enable the Send shipping tracking events to Shopify feature
Note: enabling this feature also means that when the shipment status is updated to Out for delivery and Delivered in ParcelPanel, the two native Shopify email notifications shown in the image below will be triggered as well. If you do not wish to trigger them, you can uncheck the boxes.
Do some settings in Stamped App admin, follow this instruction of Stamped.io Product Reviews UGC: Send review request based on Shopify's delivered notifications
Note: about the review request email templates and time interval, etc,. please kindly contact the Stamped Support Team directly for help.