Hello @Sales Engineer ,

You can set the urgency field value as -

current.urgency = '1'; //Value which you want to set

current.insert();

current.urgency = '1'; //Value which you want to set
current.insert();

Also, please refer below link for additional information -

https://www.servicenow.com/community/developer-forum/how-to-set-incident-priority-from-email-subject...

If my answer solves your issue, please mark it as Accepted✔️ and Helpful👍.