There are two general order types: market and pending in White Forex MT5 server.
• Market order is an order to open a position at the current market price.
• Pending order is an order to open a position once the price reaches a certain predefined level.

There are six types of pending orders.
• Buy Limit is an order to buy an asset at a price lower than the current one. Traders usually open it in anticipation that the asset price will rise after achieving a certain support level.
• Buy Stop is an order to buy an asset at a price higher than the current one. Traders usually open it in anticipation that the asset price will continue to rise further after breaking above a certain resistance level.
• Buy Stop Limit is a joint work of Buy Stop and Buy Limit, which traders use in anticipation of the asset price decrease before it continues to rise. First, you set the alarm for a price higher than the current one and specify the Stop Limit price. When the first price is triggered, a Buy Limit order is placed automatically.
• Sell Limit is an order to sell an asset at a price higher than the current one. Traders usually open it in anticipation that the asset price will decrease after achieving a certain resistance level.
• Sell Stop is an order to sell an asset at a price lower than the current one. Traders usually open it in anticipation that the price will continue to decrease after breaking below a certain support level.
• Sell Stop Limit is a joint work of Sell Stop and Sell Limit, which traders use in anticipation of the asset price increase before it continues to decline. First, you set the alarm for a price lower than the current one and specify the Stop Limit price. A Sell Limit order is placed automatically when the first price is triggered.