RFA .NET Level 2 data subscription

Hi Team,

In RFA .NET, I tried to subscribe to level 2 data, I have the correct RIC code(e.g. STEL.SId)

I created a reqMsg with RDM.MESSAGE_MODEL_TYPES.MMT_MARKET_BY_PRICE as type.

However, I received an error of "StatusText
: The record could not be found StatusTextW : StreamState : Closed DataState :
Suspect StatusCode : 1"

Is there anything I am missing?

Thanks very much.

Cheers,

Juno