Stop-loss is not mandatory on 5K to 100K accounts.
For accounts of 200K and 400K, placing stop-loss orders becomes mandatory to ensure effective risk management, positions opened without stop-loss would be considered a soft breach, such trade will be closed. While it is strongly recommended for all accounts, for these higher-tier accounts, the use of stop-loss orders is a requirement to protect against large drawdowns and minimize potential losses in volatile markets.