OKX US announced it will cancel open orders and automatically sell positions in Grid and Smart Portfolio bots on affected USD trading pairs if users fail to migrate them to corresponding USDC pairs by the Sept. 30 deadline. The old order books will be retired between 7 to 8 a.m. UTC on Sept. 30. Positions managed by DCA, Recurring Buy, and TWAP/Iceberg bots will be held after migration, though these bots will still close. Automatic sales may incur trading fees or slippage. USDT-USD pairs, account balances, deposits, and withdrawals are unaffected. Users can still place orders with USD, which will automatically convert to USDC.