ServiceDesk Plus Certification

ServiceDesk Plus Certification

Hello, can't find any answer and noone is replying on e-mail ( metraining@manageengine.com; certifications@manageengine.com; sales@manageengine.com;  prasanna.ra@manageengine.com) 

?: how to get certified for a ServiceDesk Plus - need just the most simple certificate for my employer - what are steps to get certified?