Invalid Client - Client ID passed does not exist

Invalid Client - Client ID passed does not exist

Hi,

Daniel here. i try to generate an authorization code by following this page Authorization Request - Web Apps - OAuth | Zoho Accounts


I put a dummy client id. but in real i am using the correct client id from my developer page.
But every time i go to the link above,
i will redirected to EU location (which i assume is correct because my account location is in EU) but i keep getting client id passed does not exist.


Please advise maybe there is a mistake i am not aware of.

Thanks,
Daniel