NAV CLOSE IDENT:X empty in simconnect

hr = SimConnect_AddToDataDefinition(hSc, DEFINITION_SIM_DATA, "NAV CLOSE IDENT:2", "String", SIMCONNECT_DATATYPE_STRING8);
hr = SimConnect_AddToDataDefinition(hSc, DEFINITION_SIM_DATA, "NAV CLOSE IDENT:3", "String", SIMCONNECT_DATATYPE_STRING8);

NAV CLOSE IDENT string is empty. I have verified I set NAV2_CLOSE_FREQ_SET & NAV3_CLOSE_FREQ_SET to 1.

Disregard. Found my answer here. How to read SimVar of type STRING - #2 by HBilliet - SDK - Microsoft Flight Simulator Forums

Would be nice to get the SDK clearly state that units should be 0 when its a string.