This usually happens when an activity split is changed after it was activated, or there are unstitched sessions for A4T based activities. This link is for A4T but will apply to non A4T activities in some cases View reports - A4T FAQ

Hi christiank86512120,There are a number of reasons why visitors would show as "Unspecified"Per Troubleshoot A4T There are several reasons why this could happen:Classification in Target hasn't fully processed.Classification generally takes between 24 and 72 hours to classify reports after the first ...

Hi Alex,I know this post is a little old, but have you looked at at,js 2.0 recently. The 2.x versions were built specifically for handling SPA'sHow at.js works overview

HI Lukasz,That is definitely something that can be added as an idea for future builds. I have submitted it on your behalf. Feel free to add more context to it as well via Create json offer using Target API

Would like the ability to create JSON offers via the target API

Hi Sushmitha,QA link visits will show up in your test before it is activated, and even after deactivated (Activity QA overview ) There should be no need to recreate the test unless you would like the report to start from 0 right on the activity start date.Thanks,Chad

Currently, users are able to look up user access reports in Analytics but would like to as well in Target, like they previously were in the Target Classic interface.