Difference between Sales Navigator tags and Dux-Soup tags
Sales Navigator tags were removed by LinkedIn in August 2020:
Dux-Soup tags are not linked with Sales Navigator tags.
If you want Dux-Soup to find or recognize a certain profile by a specific tag, you need to tag them with Dux-Soup first and use an Expert user interface as tagging will not work with a Regular/Simplified user interface.
To enable tagging, go to Dux-Soup Options and enable the button below:
Now the next time you will run a profile visit function on Dux-Soup, it will also tag these profiles. To retrieve them, simply click on "Search by Tag" and enter your tag