Also note that I am only placing the actual tracking number and not the link when adding tracking using this plugin. The link I gave you above seems like it is doubled or something (doesn’t look right). I just wanted you to know that this is not me doing this. I am only placing the actual tracking number in the box before click on save.
In woocommerce the link will then display as this:\
https://tools.usps.com/go/TrackConfirmAction?tLabels=9400111206213041218264
however, when you click on the email link to the customer this is what they are getting: https://tools.usps.com/go/TrackConfirmAction_input?qtc_tLabels1=https://tools.usps.com/go/TrackConfirmAction?tLabels=9400111206213041218264