Solved by adding DSI (DATASTREAMINDICATOR) character in DataWedge so it will send it before the scanned data and tells the server that the data is from a scanner
No I'm sorry I have no idea how to manage the display size of the fields in MSCA.
But it seems to be the nature of using a small mobile screen in portrait mode with x font size.
You could try turning the TC70 sideways and make the screen go into landscape mode.
Our customers are currently using Velocity Terminal Emulator as the MSCA app has not been good enough to replace it.