Different Terminal Check In
Need some help with this as I couldn't find the answer anywhere.
Myself and my wife are travelling via Changi to 2 different destinations. She will be travelling from T3 while I will be travelling from T1. I will be the only one with luggage. So she will not need to pass by the check in desk if she online checked in.
Is it possible for her to go through immigration from T1 then transfer via the airside skytrain to T3? Or does she need to pass immigration only from T3?