Sigh. This morning I was reminded of how much I hate it when an application offers you a link to get more information about a topic, and then sends you to its online help main table of contents.
I was setting up a workflow in SharePoint Designer and got this warning message:
I clicked the Ensuring Unique Lookups link and this is what I got:
So I tried entering a few phrases like "ensuring unique lookups" and "unique lookup" in the search field. It turns out there are no entries in the help file on how to do this, just mentions of the fact that sometimes you'll want to make sure your lookup is unique. That definitely explains why the link didn't take me directly there. Would "Thanks for wasting my time" sound too bitter?