Recent updates to Advisor Allocation Group functionality include:
Previously, US stock size quotes were displayed in round lots (of 100 shares). Effective with TWS release 985 and above, the bid, ask, and last size quotes are displayed in shares instead of lots.
API users have the option to configure the TWS API to work in compatibility mode for older programs, but we recommend migrating to "quotes in shares" at your earliest convenience. To use compatibility mode, from the Global Configuration > API > Settings page, check "Bypass US Stocks market data in shares warning for API orders."