As of April 12th, you must go to Progress SupportLink to create new support cases or to access existing cases. Please, bookmark the SupportLink URL and use the new portal to contact the support team.
This REST Users guide page contains this link to "Kinvey references" as if it were a formalized data type, but the link just takes you to the general guide for relational data that describes the pattern for simply adding a field for an entity id pointing to another collection. Are "Kinvey references" no longer formal?
I think the link for Kinvey references mentioned on REST Users guide page is incorrect. While reviewing 'User Groups' documentation, I clicked on 'Kinvey references' and it took me to the 'Data Store' documentation. I think the correct link for references is this link. Please go through this link and let me know if it answers your questions.