The game here is first we was advertising in YSM for a single sub domain (abd.example.com) that time the conversion were tracked properly. Later we stopped advertising for the sub domain. Mean while we created new campaign is the same account to advertise for another sub domain (efg.example.com) and we placed the same tracking code. the conversions tracked properly for the second sub domain. Now when we re activated the old campaign for the first advertiser, the conversion are not tracking.
Note: both sub domains are having different thankyou pages. Do we need to create different account for two different sub domains?