Excluding Phrases in Dedupe Function: Need Help with Clay

Clay S. Wondering if anyone encountered the same limitation with Dedupe function in clay: I am trying to use auto dedeupe on a table, but trying to get it to exclude certain phrases from the dedupe function. For he screenshot below: I only want to dedupe the rows that have a client link (Making sure there are no duplicate clients) , instead of deduping all the "No Client Assigned" Is there a way to do this?