I am using blpapi 3.5.5. windows python api. I am getting intraday tick data using //blp/refdata, following fields: BEST_BID, BEST_ASK and TRADE. Using Bloomberg terminal I found fields: IN_AUCTION, AUCTION_TYPE and TRADE_STATUS, but none of it works, returning NotFoundException.
Dou you know any field that is containing stock info (e.g. in auction/continiuos trading) available in  //blp/refdata?
Intraday Tick fields are limited to the following fields:
TRADE
BID
ASK
BID_BEST
ASK_BEST
BID_YIELD
ASK_YIELD
MID_PRICE
AT_TRADE
BEST_BID
BEST_ASK
SETTLE
You can optionally include the following fields:
Action Codes
BicMic Codes
Broker Codes
Client Specific Fields
Condition Codes
Eq Ref Price
Exchange Codes
Indicator Codes
Non Plottable Events
Rps Codes
Spread Price
Trade Id
Trade Time
Upfront Price
Yield
As for IN_AUCTION, AUCTION_TYPE and TRADE_STATUS, you can pull them using a ReferenceDataRequest, or subscribe to IN_AUCTION_RT, RT_EXCH_TRADE_STATUS, respectively.
Bloomberg API /blp/refdata: stockinfo