Hi,

Please elaborate your question.

https://www.servicenow.com/community/now-platform-articles/10-tips-for-writing-a-quality-community-q...

You get the caller from email.from objevt , from that email you can get the sys_id of user by gliding the user table.

If you are getting something specific in the email, then it should be at a defined place , like the subject should start with caller id. In that case you can perform string operations on the email.subject and get the caller id.

Hi,

I guess this is what you are looking for 

current.caller_id = email.subject;

Please share any scripts if you have 

Hi Aquib,

Thanks for the quick replay.

I sent an email to ServiceNow to create an incident in Servicenow and I mentioned the user Id in the email Subject but still no caller in the incident form. 

Inbound action:

Thanks.