By default, your tracking page URL looks like this way:
If you want to change your Tracking Page's URL, please follow the steps below.
From Track123 > Tracking page > click on three-dot icon > Edit URL
Select the link you prefer, and replace track123 with other words. Click on Save.
Click Edit URL as step 1. Click the "View in Shopify settings" button.
You will be redirected to Shopify Settings. Navigate to the App proxy section, and click Customize URL button.
Edit the URL and click Save. Please make sure the URL you input is the same as the tracking page URL you just set )
Note:
Remember to change the URL in your store navigation as well(ignore this if you do not add it to your navigation).
In case you're using the DSers App to fulfill your orders, don't forget to change the link in the app as well, please follow this guide.