How to make knowledge article attachment mandatory on incident form based on resolution code choice.

[snow_beginner]

Hi,

So there is a requirement that if the 'Resolution Code' = Known Error on the incident form then an attachment needs to be mandatory of a Knowledge article. How would I achieve that functionality? To make the (📎) thats on top of the form mandatory, what would be needed?

[Amit Verma · Accepted solution]

Hi @snow_beginner 

Make a Business Rule as below on the incident table :

(function executeRule(current, previous /*null when async*/ ) {

    if (current.hasAttachments() != true) {

        gs.addInfoMessage("Please add a relevant knowledge article to proceed!!!");

		current.setAbortAction(true);

    }

})(current, previous);

Output :

Thanks & Regards

Amit Verma

[Akansha Gupta]

hi @Amit Verma @snow_beginner - i am new to ServiceNow and working on similar requirement, i have a quick question - can't we use client script for validating attachment while resolving the incident with 'Resolution Code' = Known Error.

just trying to understand if it can be achieve by client side script or need to write business rule as suggested above.

[Amit Verma]

@Akansha Gupta 

You can refer below link:https://www.servicenow.com/community/itsm-forum/how-to-check-attachment-before-on-submit-client-scri...

Please note that it requires DOM Manipulation which is not recommended.

[Akansha Gupta]

thanks a lot @Amit Verma for your quick response!

can you please also help m in understanding which one is preferable as per best practice - BR or client script.