We passed Hit Type into an via a processing rule Evar - returning 0 for foreground and 1 for background. However, there are a small number of unspecified values for this eVar. Is there a way to correct this?
Did you check it out?
Look for app version, it may be coming from a specific app which is not updated by users since a long.
Also I would prefer to set this eVar with life cycle metrics.