This certification proves skills for integrating the XenApp and XenDesktop Service and delivering apps and desktop to Microsoft Azure.
Before the end of March 2018, completion of the 5-day CXD252: "Moving to the XenApp and XenDesktop Service on Citrix Cloud and Microsoft Azure" or 2-day CXD-251: MCitrix XenApp and XenDesktop Service on Microsoft Azure" instructor-led training courses would certify you in Citrix Cloud. No exam was required, certification was granted by attending the class. Please be aware that all Partners will be required to be Cloud certified in order to receive their Partner benefits for selling Citrix Cloud.
Since June 2018, you are required to pass the requisite exam to gain this certification.
Once the course is completed you can register for the online exam here.