How long does it typically take for a tracking email to be sent?
Sometimes there can be a delay, this is based on how long it takes for the specific sales channel to process and send the notification to the customer.
Amazon & eBay
Email notifications typically take up-to 2 hours to send.
Shopify, WooCommerce, Magento, BigCommerce, Walmart & Etsy
Email notifications typically take up-to 20 minutes to send.
Why the Delay?
Most sales channels are built to send large volumes of notifications when required. This means they are designed in a way to handle high load and not fail. Typically, notifications are sent by a process that runs on a set time.