How to add certificate for published applicaion Url in mendix when using free trail

Hello,   I am using free trail of mendix platform. I have integrated SAML module in my application and want to send SAMl requests to authenticate via identity provider. Authentication requests requires the certificates.  Please suggest how to add the certificates in Environments. I am not able to view the options to upload certificates in developer portal.  
1 answers

You cannot add certificates with a free version of Mendix.  You’ll need to have a paid subscription.  You can find the limitations of a Free App here:

The Basic license is a low cost way to get started: