Related to creating custom property using alfresco, I am trying to set custom property on a document using DotCmis and OpenKM and I receive the error: Property +'okp:contract.cups' is not valid for this type!
How can I set a custom property using DotCmis and OpenKM?
I suggest you ask this question at forum.openkm.com is the oficial channel where the OpenKM developers helps community users.
However take a look at this url: http://wiki.openkm.com/index.php/Property_Groups_definition ( here some example ) http://wiki.openkm.com/index.php/Property_Groups_administration http://wiki.openkm.com/index.php/Form_Element_description ( complete information about form element types )