Tiago,

> Hi!
>
> Do someone know what's wrong with this filter expression?
>
> UPPER(CLIENT_NAME) LIKE 'JOHN%'
>
> IBO raises an error everytime asking for parenthesis... Very strange.
>
> My configuration: D7 + F1.5 + IBO4.8.7

This appears to be fixed in the latest version of IBO.
Are you able to upgrade to try it out to confirm?

Thanks,
Jason LeRoy Wharton