Rollback button in change form

[rodrigo Soto]

Hi everyone, im trying to make this button to do a rollback to the phase of New, anyone has an idea? or a script?

Thank you for your help!

[Ankur Bawiskar]

@rodrigo Soto 

script looks fine.

what's the issue?

[rodrigo Soto]

Hi Ankur, the issue is that when i click the button it show this: