The TermsAndConditionsExtractionRequest for MBS securities returns null for the ric code. So I do not know what identifier I can use when subscripting to a price on the EMA price subscriptions. I have tried the isin/cusip with and without a "=RRPS" suffix with no luck. I also tried the "Entity PermID" and "Issue PermID" fields from the T&C call response.
Thanks in adance.