[otrs] Dynamic Fields date and time based SLA solution time

HI All, Dynamic Fields date and time created as Estimated Resolution Time . I am using SLA Escalation - first response time but not using Escalation - solution time. I want use "Estimated Resolution Time" (Dynamic Fields date and time ) as "Escalation - solution time". If any ticket reach Estimated Resolution Time means ticket solution time Escalated. Example: Ticket first response time : 30min Estimated Resolution Time" (Dynamic Fields date and time ): some date xx/xx/xxxx 60min How to use Dynamic Fields date and time as Escalation - solution time:????? Thank you, Regards, Kalyana chakravarthy M .P,