What causes an order rejection on the platform?
An order may be rejected if it does not meet margin requirements, contains invalid parameters, or if market conditions prevent proper execution at that moment. Order rejections are a normal part of the trading environment and serve as a protective mechanism — they prevent orders that cannot be properly fulfilled from entering the market, helping to maintain account stability and execution integrity.
An insufficient margin is one of the most common causes of order rejection. Every position requires a specific amount of collateral based on the instrument's leverage ratio and the requested trade size. If the account's free margin — i.e., the balance remaining after accounting for all open positions — is insufficient to cover the new order's margin requirement, the platform will automatically reject it. This can happen when a trader's account is already heavily allocated to existing positions, when recent market movements have reduced available equity, or when the requested position size is simply too large relative to the current account balance.
Invalid parameters encompass a range of issues that can prevent an order from being accepted. These include setting a stop-loss or take-profit level too close to the current market price, requesting a trade volume that falls outside the instrument's permitted range, attempting to place an order on an instrument that is currently closed or suspended, or submitting contradictory order instructions that the system cannot process. Market conditions can also trigger rejections. This could, for example, occur during extreme volatility: rapid price movements may cause the price to change between the moment the order is submitted and the moment it reaches the execution system, resulting in a rejection if the new price falls outside acceptable parameters. When an order is rejected, the platform provides a notification explaining the specific reason, which allows the trader to identify and correct the issue before resubmitting. Reviewing the rejection message carefully, verifying available margin, checking instrument specifications, and confirming that all parameters are within acceptable ranges are the most effective steps toward resolving the issue and placing the order successfully.