YayMail Shortcode Is Missing
Check that YayMail is active
The Deviking YayMail section in Email Settings appears only when YayMail is detected as active.
Shortcode
Use:
[yaymail_custom_shortcode_deviking_order_tracking_table]
Test with a tracked order
A real email must have a WooCommerce order context. Use an order that contains tracking data when testing the final output.
No tracking entries
For a real order without tracking data, the tracking table does not render shipment rows.