The minimum bid and ask order quantity for all trading pairs is 1 USDT. If you were to place a order quantity with the amount lower than 1 USDT, you will encounter the error message Transaction amount lower than the minimum.
You may also take a look at our Trading Limits and Rules here for more information on which controls are currently set in place.
If you enter an amount higher than the minimum quantity yet an error message still persists, please reach out to us through the following channels: