The minimum bid and ask order quantity for all trading pairs is Php 50. If you were to place a order quantity with the amount lower than Php 50, you will encounter the following error message:
For more information on which controls are currently set in place, you may also take a look at our article here.
If you enter an amount higher than the minimum quantity yet an error message still persists, please reach out to us through the Coins app or Coins Support Form.