Thanks Prads, but I have already followed the steps in that documentation. I have created the audience in Target using the CA as the documentation below recommends, but it does not appear in the profile snapshot when testing. Use customer attributes in TargetYou can use customer attributes in Target...

I have created a new customer attribute, have uploaded data, and can see it in Target under Visitor Profile when creating an audience. But when I create an activity with the audience and QA, I do not see this attribute listed in the Profile Snapshot when looking at the Experience Platform debugger. ...