The results of trigger executions are recorded in the “Action log” section of the system administrative settings.
The “Status” field refers to the result of the trigger’s action. For example, the “Information” status indicates the trigger worked successfully, and the “Error” status indicates that the trigger did not work.
According to the message, you can determine which order an action was related to, and the reason why the trigger wasn’t executed. If possible, the text of the message contains links to objects that are the context of the trigger itself (order, customer, etc.) or action (templates of e-mails/SMS).