Duration variables
Both the escalationDuration and escalationType variables are only generated if there is no timer boundary event attached to the user task. In case there is one attached, it assumes that you will handle the escalation manually and no escalation variables are generated.
For more information about specifying a duration for the variables, please read about the ISO 8601 standard. Also note that we support business day durations. You can denote a business day duration by using a B instead of a P. If you use a business day duration, weekends are not taken into account. If a business day duration ends at a weekend, the first weekday after the weekend is used. You can use the business day duration just like a normal duration.