I queried the below in the service console to get the custom object count. But I got one object difference. i.e "PersonAccount" . When i check the ID its not displaying in the UI page.
select id, DeveloperName, Description, ExternalName, ManageableState, NamespacePrefix, SharingModel from CustomObject where ManageableState != 'installed'
// Output //Make sure you checked the tooling API checkbox when u run the query in console //Count 514
Setup-> System overview -> custom object count (513)
1 difference in object count. Object name is "PersonAccount"
Why is it showed here?