I am trying to use the /data/datagrid/beta1/ API, but notice that any fields queried that do not start with TR such as CURRENCY, RDN_EXCHID, RDN_EXCHD2 or LOT_SIZE are not recognized as valid fields and thus do not even generate a response. Does anyone know if there is a limitation to this api to only accept TR.XXX fields such as TR.Sedol for example? I already understood that CF_XXX fields are not accepted as they are Eikon mapppings. Eikon provided me with the real data feed mapping for these various fields but they do not start with 'TR', so they are not being accepted by this api.
The datagrid service does not presently support a few things, such as realtime FIDs (CURRENCY, LOT_SIZE, etc), including CF_ realtime fields and chains. That being said, the snapshot service endpoint will provide some of these realtime fields: data/pricing/beta3/snapshots.
You will need to reach out to your Refinitiv account manager to grant you access. After some testing, the snapshot service does not yet provide CF_<fields> but will provide you the standard real-time streaming fields.
If it is mandatory that you need the CF_ fields, the only available service that I'm aware of is the streaming service when you access it through the desktop.