There are two methods for assigning an existing device to a user. It is important to note that consumers can only have one of each of the following devices: analog phone, IP Phone, and external device. Depending on the devices the user already possesses, one or more items in the dropdown menu may be disabled.
are you using an admin account or ist your account restricted? It seem that you are missing access rights to some object types or a function as there is no overview name "by object" which lists the objects connected with your selected dialogue.
@MartinV Hi thanks for the response, i gone through this post earlier but unfortunately it does not include what all the options to be select for creating PDU device in idoit. Is there any guidelines what are the necessary options to create such devices ? I see very limited contents on internet about idoIT.
1, you are right if you have the Rights like this:
It should be possible to see all categories on the overview Page of all objects which are Clients.
In order that these limitations take also effect in the object browser, in the location view as well as in the CMDB Explorer, you have to define advanced settings under Administration → System settings → Expert settings: