SAP Message REBDCA034 - You are not allowed to assign arch. object &1 to object type &2

Diagnosis You are not allowed to assign architectural object &V1& to a usageobject of type &V2&. Procedure Change the Customizing settings so that this architectural object can beassigned to a usage object of this type. You do this in theCreate Architectural Object Types IMGactivity. Or: Assign the architectural object to a different usage object. Or choose adifferent architectural object for usage object &V2&.