how to use client script and ui policy on service portal?

[Sona1]

I have catalog item named asset relocation

this catalog item is used to relocate the asset from one location to other. in this cat item when u select any item it will automatically populates its current location in current location field. for this I hv used reference variable "curr_location" and ui policy to find the location from location table

I want this to work in service portal. but in service portal it is not auto populating the current location of item

[Michael Ritchie]

You may want to view my getReferenceAdvanced solution documented on the Community and code in Share:

getReferenceAdvanced, g_form.getReference and GlideAjax Alternatives

This will work for both desktop and the Service Portal.   As the blog article describes you will need 2 separate client scripts for the getReferenceAdvancedDesktop and getReferenceAdvancedPortal functions.