How to redirect to portal using UI action

Hi All,

Greetings,

I have a requirement where I need to create an UI action on workspace on case form. When user open a case, click it then it should redirect the user to a catalog item form and pass that particular case number on catalog form filed "case number"

Catalog form name is - Order form

link to catalog item = https://abc123.service-now.com/csp?id=sc_cat_item&sys_id=89c4bd0f1b0455105f5bfd115b4bcb9a&referrer=popular_items

How can we achieve this, I mean what could the code?