I am unable to create a case in the Unified Interface. The "New Case" button is missing in the ribbon. This issue is only with the Case entity. Other entities are working fine.
Even if I try to navigate to the create from using some JavaScript, when the form loads, it shows error message "Selected entity is read-only for this client". I have compared the entity properties with opportunity and they are same. But opportunity works and the Case does not work. Please help.
