Failed to cancel expired order
User canceled their limit order
User tried to place the limit order out of the spread. The limit order is converted into a market order.
Some amount of the limit order is executed
The limit order has reached the end of its lifespan
User tried to place the limit order out of the spread.
One part of the liquidity of the limit order is converted into a market order, and the other part is placed as a limit order.
User placed new limit order
The limit order is updated
User executes a deal by the market order
New order book is created by user
Order book is deleted
Order book status is changed
Order book attributes are updated