Hi Ian, It is possible, you'll need to go through text mode though. Here's our API explorer so you can figure out what's available. https://experience.workfront.com/s/api-explorer You'll want to open the Issue object, click on the References tab, and you can see Resolve Task is available, which means you can hit the task object. You can add Issue>Resolve Task ID, switch to text mode, and for the valuefield, remove ID, add :referenceNumber so then it shows the reference number. Here's the code:
displayname=Resolved by Task Ref #
linkedname=direct
namekey=resolveTask:referenceNumber
querysort=resolveTaskID
textmode=true
valuefield=resolveTask:referenceNumber
valueformat=HTML
You can also do resolveTask:name or resolveTask:Owner, etc etc etc. Good luck! Dustin Martin Assigned Support Engineer Workfront