On click of UI action autogenerate unique number

[Sanchita02]

Hello All,

I have a requirement that I want to autogenerate a Number for "challan" field on click of UI action. The number generated should be unique for every record 

[Marc Mouries]

There is an API for that. Check out

gs.generateGUID()

https://docs.servicenow.com/bundle/washingtondc-api-reference/page/app-store/dev_portal/API_referenc... 

[Community Alums]

Hi @Sanchita02 ,

Please create Client callable UI Actions and add below code 

function unique() {
	var id = "Challan" + Math.random().toString(16).slice(2);
    alert("id = " + id);
}

Result: 

Please mark my answer correct and helpful if this works for you

Thanks and Regards 

Sarthak

[Marc Mouries]

Math.random() does not ensure the number is unique