average daily Volume and minimum order size ( using fields VMA_30D and MIN_ORD_SZ) via Interday API

Hi Team, can you advise the average daily volume and minimum order size (fields VMA_30D and MIN_ORD_SZ) in the REST API https://api.refinitiv.com/data/historical-pricing/v1/views/interday-summaries/8439.T?fields=ASK,BID,VMA_30D,MIN_ORD_SZ&end=2023-08-04T15:26:40.638893Z&adjustments=exchangeCorrection,manualCorrection,CCH,CRE,RPO,RTS&interval=P1D why is it not supported? The error message is:
"The universe does not support the following fields: [VMA_30D, MIN_ORD_SZ]."

These fields appear to be valid, at least on the content side. Is this error something to do with the API? or is the api call being used is incorrect? Thank you in advance. Above link is the endpoint client is using.

Thank you in advance.