@reptar You can do something like this: - UE

beforeLoad

on the Invoice Record would create the button with function to be executed on click - Same UE would attach the

clientScript

file to the form. - Your

clientScript

function is going to get the internal ID of the Invoice and then: - You can send a

POST

to a

Suitelet

or a

GET

or just

window.open

and go there with the Invoice ID as a

parameter

...