Hi @Oleh
The field 259 - RECORDTYPE - of a record from our real-time feed can help identify the type of record: Using FID 259 to identify your market data records | Refinitiv Developers
If the above article does not provide the answer, I recommend you raise a Content-Type ticket at My.Refinitiv - to discuss your requirement with a content specialist.
This forum is aimed at answering "how-to" types of questions about using Refinitiv APIs and the moderators are not Content/Data specialists. The Refinitiv Real-time feeds carry over 80million RICs from 10,000+ sources - and we have Content specialists covering specific content sets.