Enter a new input in comment field once Close button is clicked

[Lawrence29]

Hi, just wanted to know the best approach to make the comment field mandatory to enter a new input once the close button is clicked.

[shubhamdubey]

@Lawrence29 

Please refer this thread.

https://www.servicenow.com/community/developer-forum/how-to-make-a-field-mandatory-through-server-si...

https://www.servicenow.com/community/developer-forum/mandatory-field-validation-in-server-side-ui-ac...