Hi Chi Chen.
That value (@ {closure_delta_hours}) brings me the value defined for the automatic closing of the service ticket, what I need is to bring the value of the date in which the ticket will be closed, for example, it should show me the following:
The automatic closing will produce the: 06/12/2018 14:42:19
This value is brought thanks to the attribute @ {esc_style = html keeplinks = yes justify = line: description} found in the automatic closing notification rule
If I use that attribute in this notification activity, it will not bring me the closing date of the service ticket, but it will bring me the analyst's response to the user regarding that ticket.