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?
After communicating with support, we finally found the answer. When sending request, 'conditionCodes' need to be set as True, then depending on stock exchange codes mainly for auction will be send, such as OA as opening auction, IA intraday auction, etc. Meaning some of codes can be found in the terminal using QR <GO>
Bloomberg API /blp/refdata: stockinfo