Cause of, When items are sending to "ACCOUNT". After that, Data of "Sub Agent or Customer" on booking page are changed, But data of items were send to "ACCOUNT" not updating.
Because, The system has to memorize the data that sending the last time. So, The data are not update. The method that made updating data is change status of item from "SEND" to "OK" then change status from "OK" to "SEND" and press the button "Send" for sending the items to ACCOUNT again.