Form Extensions - How do I translate a button?

Hi all,

I have added a button to the P48022 via form extensions. I have labelled the button in English. I now need to translate the same button to Spanish and Portuguese.

I tried using the 'Translate' row exit on the 'Work with User Defined Objects' screen and added a translation for the form extension. When tested, the button did not show the translation.

Can anyone tell me how/if I can do this?

Thanks in advance.