How to update existing incident ticket using inbound email action

[String]

Hi Team ,

Am using below code to update the existing incident records using inbound email action ,instead of updating ,service now creating  a new incident .below is my code 

 var caseGR = new GlideRecord(‘incident’);

 var Number = emailBody.incident_ticket;

caseGR.addQuery('number', Number);

caseGR.query();

if (caseGR.next()) {

 current.state = 10;

current.description='Reopen ticket';

   current.update();

}

am trying to use  current.update(); instead of caseGR.update(); because I want to capture email in activity log (incident )

Please guide me with best practices 

[Community Alums]

For anyone else landing here from searching, switching current to the record you want should cause the email to attach to it in the activity log:

if (caseGr.next()) {
...
caseGr.update();
current.get(caseGr.sys_id); // Switch current so the email is attached to it
}